EP4088337A1 - Cellule électrochimique, système électrochimique et procédé de fabrication d'une cellule électrochimique - Google Patents

Cellule électrochimique, système électrochimique et procédé de fabrication d'une cellule électrochimique

Info

Publication number
EP4088337A1
EP4088337A1 EP21700829.1A EP21700829A EP4088337A1 EP 4088337 A1 EP4088337 A1 EP 4088337A1 EP 21700829 A EP21700829 A EP 21700829A EP 4088337 A1 EP4088337 A1 EP 4088337A1
Authority
EP
European Patent Office
Prior art keywords
electrochemical cell
contact element
resin material
cell
approximately
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21700829.1A
Other languages
German (de)
English (en)
Inventor
Mathias Widmaier
Matthias Schwindowsky
Elisabeth Reitz
Mathias Scherer
Christian Beck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ElringKlinger AG
Original Assignee
ElringKlinger AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ElringKlinger AG filed Critical ElringKlinger AG
Publication of EP4088337A1 publication Critical patent/EP4088337A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/193—Organic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/195—Composite material consisting of a mixture of organic and inorganic materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells

Definitions

  • Electrochemical cell electrochemical system and method for making an electrochemical cell
  • the present invention relates to an electrochemical cell for an electrochemical system.
  • the present invention also relates to an electrochemical system comprising one or more electrochemical cells.
  • the present invention further relates to a method for manufacturing an electrochemical cell.
  • Electrochemical cells are from DE 10 2018 209 270 Al, DE 10 2017 200 390 Al, EP 2 541 650 Al, US 2015/0214516 Al, DE 10 2012 213 871 Al, EP 1 459 882 Al, the US 2018/0097208 Al and WO 2017/159760 Al known.
  • the present invention is based on the object of providing an electrochemical cell which can be manufactured as simply as possible and has a long service life.
  • the electrochemical cell for an electrochemical system comprises an electrochemical element for receiving, storing and / or providing electrical energy.
  • the electrochemical cell further comprises a housing for receiving the electrochemical element, the housing surrounding an interior of the electrochemical cell and comprising a cover element.
  • the cover element is preferably positively and / or non-positively and / or cohesively connected to a further, in particular cup-shaped, housing component.
  • the electrochemical cell comprises a first cell terminal and a second cell terminal for connecting the electrochemical cell to a cell contacting system.
  • the first cell terminal is, for example, an anode.
  • the second cell terminal is, for example, a cathode.
  • the first cell terminal forms the cathode and / or that the second cell terminal forms the anode.
  • the electrochemical cell comprises a first contact element which connects the first cell terminal to a first connection conductor of the electrochemical cell and if the electrochemical cell comprises a second contact element which connects the second cell terminal to a second connection conductor of the electrochemical cell .
  • the first connecting conductor is preferably used to electrically connect the electrochemical element to the first contact element.
  • the second connecting conductor is used in particular to electrically connect the electrochemical element to the second contact element.
  • the first contact element is fixed to the cover element in a first connection area by means of a first potting element.
  • the first potting element is formed from a first polymer material, which in particular comprises a first resin material or is formed therefrom.
  • the second contact element is fixed in a second connection area by means of a second potting element on the cover element.
  • the second potting element is formed from a second polymer material, which in particular comprises or is formed from a second resin material.
  • Additional tools for producing the first potting element and / or the second potting element are preferably unnecessary.
  • a tool-free terminal bushing is designed.
  • first resin material and / or the second resin material can in particular avoid or reduce the formation of a gap, which can occur, for example, when a thermoplastic material is injected. In this way, a sealing effect of the first potting element and / or of the second potting element is preferably optimized.
  • first potting element and / or the second potting element are filler potting elements.
  • the second cell terminal can also be connected directly to the cover element with a material fit, for example by means of laser welding and / or friction welding and / or ultrasonic welding.
  • the first contact element has an at least approximately T-shaped cross section or an at least approximately L-shaped cross section.
  • the cross section is preferably taken parallel to a main side of the electrochemical cell.
  • the second contact element preferably has an at least approximately T-shaped cross section or an at least approximately L-shaped cross section.
  • the cross section is preferably taken parallel to a main side of the electrochemical cell.
  • the first potting element has an armature shape and / or at least approximately two C-shapes in a cross section taken parallel to a main side of the electrochemical cell.
  • a form fit and / or force fit is preferably formed between the cover element and the first potting element, in particular along a direction arranged parallel to a central axis of the first contact element.
  • the central axis of the first contact element is preferably a main direction of extent of the first contact element.
  • the central axis of the first contact element is arranged at least approximately perpendicular to a main plane of extent of the cover element.
  • the second potting element has an armature shape and / or at least approximately two C-shapes in a cross section taken parallel to a main side of the electrochemical cell.
  • the central axis of the second contact element is preferably a main direction of extent of the second contact element.
  • the central axis of the second contact element is arranged at least approximately perpendicular to a main plane of extent of the cover element.
  • the electrochemical cell has at least one predetermined breaking point, which is arranged, for example, in a central section of the cover element between the first cell terminal and the second cell terminal.
  • the at least one predetermined breaking point is, in particular, at least one material weak point, for example at least one burst element.
  • the at least one predetermined breaking point preferably breaks and / or tears.
  • the cover element comprises a metallic material or or is formed from a metallic material. This can make processing easier.
  • the cover element is made of sheet metal, for example made of aluminum.
  • the first polymer material has a hardness of approx.
  • the first polymer material preferably has a hardness of approx. 100 Shore D or less, in particular approx. 97 Shore D or less, for example approx. 95 Shore D or less.
  • the second polymer material has a hardness of approx. 40 Shore D or more, in particular of approx. 50 Shore D or more, for example of approx. 60 Shore D or more.
  • the second polymer material has a hardness of approx. 100 Shore D or less, in particular approx. 97 Shore D or less, for example approx. 95 Shore D or less.
  • the hardness is determined in particular in accordance with DIN EN ISO 868.
  • the stated hardnesses also apply preferably to the first resin material and / or the second resin material in a cured state.
  • the first polymer material has a glass transition temperature of approx. 90 ° C. or more, in particular of approx. 95 ° C. or more, for example of approx. 100 ° C. or more.
  • the second polymer material has a glass transition temperature of approx. 90 ° C. or more, in particular of approx. 95 ° C. or more, for example of approx. 100 ° C. or more.
  • the stated values for the glass transition temperature preferably also apply to the first resin material and / or the second resin material in a cured state.
  • the first resin material and / or the second resin material preferably comprises or are formed from one or more of the following materials: epoxy resin material, phenolic resin material, aminoplast material, polyurethane material, silicone material, polyester resin material, ABS (acrylonitrile butadiene styrene) resin material.
  • An epoxy resin material for example an epoxy resin, has proven to be particularly advantageous for use as the first resin material and / or as the second resin material. This has an optimized resistance to corrosion. This can be advantageous in particular with regard to contact with an electrolyte used in the interior of the electrochemical cell.
  • epoxy resin materials have optimized gas tightness, which is why sealing with epoxy resin materials is advantageous for optimized tightness.
  • first resin material and / or the second resin material are used as the first resin material and / or the second resin material.
  • slight volume shrinkage preferably occurs during curing and / or drying. In this way, the formation of a gap in the first potting element and / or second potting element can be reduced or avoided.
  • One-component resin materials are preferably used as the first resin material and / or the second resin material.
  • first polymer material and / or the second polymer material are highly crosslinked materials, for example highly crosslinked epoxy resin materials.
  • first resin material and / or the second resin material during the production of the first potting element and / or the second potting element has a viscosity of approx. 10 2 mPas or more, in particular of approx. 10 3 mPas or more.
  • the viscosity of the first resin material and / or of the second resin material in a production of the electrochemical cell is preferably approx.
  • a filling of the first connection area with the first resin material and / or the second connection area with the second resin material preferably takes place at ambient pressure.
  • the first resin material and / or the second resin material comprise one or more fillers.
  • the one or more fillers can also minimize diffusion of the electrolyte out of the interior of the electrochemical cell.
  • the one or more fillers are in particular selected from one or more of the following: inorganic fillers, in particular silicon oxide, carbonate, carbide, in particular silicon carbide, nitride, in particular metal nitride, metal oxide.
  • the cover element is connected to an, in particular plate-shaped, insulating element on an inside facing the interior.
  • the insulating element has, in particular, one or more positioning projections on a side facing the cover element.
  • the one or more positioning projections preferably engage in one or more complementary positioning recesses of the cover element.
  • the insulating element has one or more positioning recesses.
  • the one or more positioning recesses of the insulating element engage in particular in one or more positioning projections of the cover element.
  • a form fit and / or force fit is preferably formed between the cover element and the insulating element.
  • the one or more positioning projections and / or positioning recesses preferably block a displacement of the cover element relative to the insulating element in a direction which is arranged parallel to a main plane of extent of the cover element.
  • the one or more positioning projections of the insulating element engage behind the cover element in a direction arranged parallel to a main plane of extent of the cover element.
  • the one or more positioning projections of the cover element engage behind the insulating element in a direction arranged parallel to a main extension plane of the insulating element.
  • the one or more positioning projections are designed in the form of pins, for example as positioning pins.
  • one or more positioning projections have an oval or rectangular or linear cross-section.
  • the cross section is preferably taken parallel to the main plane of extent of the cover element.
  • an average thickness of the insulating element of the electrochemical cell is approximately 1/10 or less, for example approximately 1/15 or less, of an average width of the insulating element taken perpendicular to the thickness.
  • the average thickness of the insulating member is preferably about 1.7 mm or less.
  • the thickness of the insulating element is preferably defined perpendicular to a main plane of extent of the insulating element.
  • a "thickness” is preferably a material thickness, in particular an average material thickness, of the corresponding element (except for recesses and / or openings).
  • the insulating element is preferably an injection molded element and / or a casting element.
  • the insulating element is and / or is made in several parts, for example in two parts.
  • the insulating element has several, in particular regularly arranged, passage openings.
  • several passage openings are arranged in all parts of the insulating element.
  • the passage openings are preferably at least approximately oval or at least approximately rectangular.
  • the passage openings can be designed in the form of recesses.
  • the insulating element comprises a compensation element for absorbing mechanical stresses.
  • the insulating element comprises a fifth polymer material or is formed from a fifth polymer material.
  • the fifth polymer material is preferably a thermoplastic polymer material, in particular an electrolyte-resistant thermoplastic polymer material.
  • the fifth polymer material is in particular a polymer material that can be processed in an injection molding process.
  • the fifth polymer material comprises or is formed from one or more of the following materials: polyethylene terephthalate, polyethylene, polypropylene, polybutylene terephthalate.
  • the cover element has a first recessed area for receiving the first potting element on a side facing away from the interior.
  • the cover element has a second recessed area for receiving the second potting element on a side facing away from the interior.
  • the first recessed area and / or the second recessed area are, for example, potting basins.
  • the first recessed area and / or the second recessed area are preferably formed by embossing.
  • the first recessed area and / or the second recessed area are embossed areas.
  • the first recessed area has a bulge which preferably forms a degassing opening when the first resin material is filled in.
  • the second recessed area has a bulge.
  • the bulge preferably forms a vent opening during a filling process of the second resin material.
  • first recessed area and / or a second recessed area means that (further and / or separate) sealing elements in the respective connection area are preferably dispensable. It can be advantageous if the electrochemical cell comprises a first sealing element which radially surrounds the first potting element on an outside of the cover element facing away from the interior of the electrochemical cell with respect to a center axis of the first contact element.
  • the first sealing element is closed, for example, in the shape of a ring.
  • Ring-shaped closed is preferably not limited to elements which have a circular shape in a cross section, but also refers to elements with an oval cross section or a rectangular cross section, the base body of which has no free ends.
  • the first sealing element has at least one interruption.
  • the first sealing element has at least one interruption in the radial direction with respect to the central axis of the first contact element.
  • the at least one interruption in the first sealing element preferably forms at least one ventilation opening through which air can escape when the first resin material is filled into the first connection area.
  • first sealing element approximately 350 ° to approximately 355 ° of a circle, the center of which forms the central axis of the first contact element, is preferably surrounded by the first sealing element in a cross section.
  • the cross section is preferably taken parallel to a main plane of extent of the cover element.
  • the first sealing element protrudes beyond the first cell terminal in the radial direction with respect to the central axis of the first contact element.
  • a ventilation opening is formed over the first cell terminal by a protrusion of the first sealing element, in particular in the radial direction with respect to the central axis of the first contact element.
  • the central axis of the first contact element is preferably a central axis of the first cell terminal.
  • the electrochemical cell comprises in particular a second sealing element which radially surrounds the second potting element on an outer side of the cover element facing away from the interior of the electrochemical cell with respect to a center axis of the second contact element.
  • the second sealing element is closed, for example, in the shape of a ring.
  • the second sealing element has at least one interruption.
  • the second sealing element has at least one interruption in the radial direction with respect to the central axis of the second contact element.
  • the at least one interruption in the second sealing element preferably forms at least one ventilation opening through which air can escape when the second resin material is filled into the second connection area.
  • approximately 350 ° to approximately 355 ° of a circle, the center of which forms the central axis of the second contact element, is preferably surrounded by the second sealing element in a cross section.
  • the cross section is preferably taken parallel to a main plane of extent of the cover element.
  • the second sealing element protrudes beyond the second cell terminal in the radial direction with respect to the central axis of the second contact element.
  • a ventilation opening is formed via the second cell terminal by a protrusion of the second sealing element, in particular special in the radial direction with respect to the central axis of the second contact element.
  • the central axis of the second contact element is preferably a central axis of the second cell terminal.
  • the first sealing element extends away from the base body of the cover element on an outer side of the cover element facing away from the interior of the electrochemical cell.
  • the second sealing element preferably extends away from the base body of the cover element on an outer side of the cover element facing away from the interior of the electrochemical cell.
  • first sealing element and / or the second sealing element have an at least rectangular cross section or an at least approximately oval cross section.
  • the cross section is preferably taken parallel to the main plane of extent of the cover element.
  • first sealing element and / or the second sealing element has one or more curved sections.
  • first sealing element and / or the second sealing element have one or more projections which extend into an interior space surrounded by the respective sealing element.
  • the one or more projections form in particular indentations in the respective connection area and / or are enclosed by the potting element.
  • first sealing element and / or the second sealing element can have one or more projections which are arranged at a distance from a respective connection area radially surrounding the base body.
  • the one or more projections are in particular formed in the shape of a base and / or cuboid.
  • first sealing element and / or the second sealing element have an undulating and / or serrated cross section, at least in some areas.
  • Curvature (s), a wave shape and / or serrated shape of the cross section of the first sealing element and / or the second sealing element as well as one or more projections can provide stability of a contact surface between the first sealing element and the first potting element and / or a contact surface between the second sealing element and increase the second potting element.
  • an adhesion of the first resin material to the first sealing element and / or an adhesion of the second resin material to the second sealing element can be optimized.
  • first cell terminal and the first sealing element are flush with one another with respect to a radial direction of the central axis of the first contact element.
  • the second cell terminal and the second sealing element are flush with one another with respect to a radial direction of the central axis of the second contact element.
  • the first cell terminal protrudes laterally over the first sealing element on one or more sides and / or that the second cell terminal protrudes laterally over the second sealing element on one or more sides.
  • first sealing element protrudes laterally beyond the first cell terminal and / or that the second sealing element protrudes laterally over the second cell terminal.
  • a lateral protrusion of the first sealing element and / or the second sealing element over the respective cell terminal can be formed by using a first cell terminal and / or a second cell terminal, which are smaller than areas surrounded by the first sealing element and / or the second sealing element.
  • Ventilating openings are preferably formed, through which air can escape when the first resin material and / or second resin material is filled.
  • “Laterally” preferably refers to an orientation of the electrochemical cell in which the first and second cell terminals are at the top and a bottom side of the housing facing away from the cover element is arranged at the bottom.
  • a cavity for receiving the first resin material is formed between the first sealing element and the first cell terminal on a side of the cover element facing away from the interior.
  • a cavity for receiving the second resin material is formed by the second sealing element and the second cell terminal on a side of the cover element facing away from the interior.
  • the first sealing element forms an electrical and / or thermal and / or spatial separation and / or insulation between the first cell terminal and the cover element.
  • the second sealing element forms an electrical and / or thermal and / or spatial separation and / or insulation between the second cell terminal and the cover element.
  • the first sealing element forms a support for the first cell terminal and / or the second sealing element forms a support for the second cell terminal.
  • the first sealing element is preferably applied to the base body of the cover element, in particular in the form of a sealing bead, in a printing process.
  • the second sealing element is applied to the base body of the cover element, in particular in the form of a sealing bead, for example in a printing process.
  • the first sealing element and / or the second sealing element are applied to the base body of the cover element in a pattern printing process, for example in a screen printing process and / or stencil printing process and / or pad printing process.
  • the first sealing element is manufactured separately and / or is a component that can be handled separately.
  • the first sealing element is an insert, for example a plastic frame.
  • this is preferably inserted into a complementary receiving space in the cover element and / or a receiving space complementary to the first sealing element in the first cell terminal. Positioning can take place in this way.
  • the second sealing element is produced separately and / or is a component that can be handled separately.
  • the second sealing element is an insert, for example a metal frame.
  • this is preferably inserted into a complementary receiving space in the cover element and / or a receiving space complementary to the second sealing element in the second cell terminal. Positioning can take place in this way.
  • the first sealing element comprises a third polymer material or is formed therefrom.
  • the second sealing element preferably comprises a fourth polymer material or is formed therefrom.
  • the third polymer material and the fourth polymer material are different from one another.
  • the third polymer material and the fourth polymer material are identical.
  • the third polymer material and / or the fourth polymer material preferably comprise one or more of the following materials or are formed therefrom: a thermosetting polymer material, a thermoplastic polymer material, an elastomeric polymer material or mixtures thereof.
  • the third polymer material and / or the fourth polymer material include or are formed from one or more of the following polymer materials: polyolefin, in particular polypropylene and / or polyethylene, polyester, in particular polyethylene terephthalate and / or polybutylene terephthalate, polyamide, polyimide, copolyamide, polyamide -Elastomer, polyether, in particular special epoxy resins, polyurethane, polyurethane-acrylate, polyvinyl chloride, polystyrene, polymethyl methacrylate, acryl-butadiene-styrene, synthetic rubber, in particular ethylene-propylene-diene rubber, polycarbonate, polyether sulfone, polyoxymethylene, polyether ether ketone, polytetrafluoroethylene, Silicone, in particular special silicone rubber and / or silicone-based elastomer.
  • polyolefin in particular polypropylene and / or polyethylene
  • polyester in particular polyethylene terephthalate
  • Thermoplastic polymer materials are preferred for the third polymer material and / or the fourth polymer material.
  • hotmelt materials are used for the third polymer material and / or the fourth polymer material.
  • the third polymer material and / or the fourth polymer material harden before preferably to form the first sealing element or the second sealing element.
  • the third polymer material and / or the fourth polymer material comprise one or more fillers.
  • the one or more fillers are in particular selected from one or more of the following: inorganic fillers, in particular silicon oxide, carbonate, carbide, in particular silicon carbide, nitride, in particular metal nitride, metal oxide.
  • a settlement behavior of the third polymer material and / or the fourth polymer material is preferably optimized.
  • the fourth polymer material comprises one or more conductive additives.
  • the one or more conductive additives are in particular selected from one or more of the following: carbon materials, in particular carbon black, graphite, graphene, carbon nanotubes, carbon fibers and / or carbon nanobulbs, particulate metallic materials, in particular metal powder, electrically conductive ceramic materials, in particular Nitrides and / or carbides, electrically conductive poly mers, in particular trans-polyacetylene, polypyrrole, polyaniline, poly (phenylene), polythiophene and / or polystyrene-doped poly (3,4-ethylenedioxythiophene) (PEDOT: PSS).
  • carbon materials in particular carbon black, graphite, graphene, carbon nanotubes, carbon fibers and / or carbon nanobulbs
  • particulate metallic materials in particular metal powder
  • electrically conductive ceramic materials in particular Nitrides and / or carbides
  • electrically conductive poly mers in particular trans-polyacety
  • Preferred particulate metallic materials preferably comprise aluminum, copper, titanium, iron, silver or are formed therefrom.
  • the particulate metallic materials comprise alloys of the materials mentioned or are formed from them.
  • Electrical conductive is to be understood as meaning, in particular, an electrical conductivity of 10 1 S / m or more, in particular 10 6 S / m or more.
  • the fourth polymer material preferably comprises one or more conductive additives.
  • the first sealing element forms a component of the cover element and is in particular formed by an elevation of the cover element, in particular an annularly closed or at least one interruption.
  • the elevation of the cover element, which forms the first sealing element, preferably extends away from the base body of the cover element along a direction pointing away from the interior of the electrochemical cell.
  • the second sealing element of the electrochemical cell forms part of the cover element and is in particular formed by an elevation of the cover element, for example closed in a ring or having at least one interruption.
  • the elevation of the cover element, which forms the second sealing element, extends in particular along a direction pointing away from the interior of the electrochemical cell away from the base body of the cover element.
  • the first sealing element and / or the second sealing element are formed by impressions and / or beads in the cover element.
  • the cover element is machined, for example, from an inside facing the interior space in an assembled state.
  • the first sealing element comprises or is formed from both at least one sealing bead and at least one bead.
  • the first sealing element is partially formed from one or more sealing beads and partially from one or more beads.
  • the second sealing element comprises or is formed from both at least one sealing bead and at least one bead.
  • the second sealing element is partially formed from one or more sealing beads and partially from one or more beads.
  • the second sealing element preferably consists partly of at least one bead made of a metallic material and partly of at least one sealing bead made of a fourth polymer material.
  • the fourth polymer material is preferably electrically insulating.
  • the bead preferably sets the cover element to potential and / or a current is more limited in the event of a fault, in particular since a contact area between the housing and the second cell terminal is minimized due to the partial formation of the second sealing element from an electrically insulating polymer material.
  • indentations of the cover element formed complementary thereto form, for example, positioning recesses on an inner side of the cover element facing the interior space.
  • positioning recesses on an inner side of the cover element facing the interior space.
  • complementary positioning jumps formed in the insulating element, which in particular enable positioning of the insulating element relative to the cover element.
  • first contact element and / or the second contact element are designed as insert parts in the insulating element.
  • a form fit between the first contact element and the insulating element and / or a form fit between the second contact element and the insulation element is formed.
  • the insulating element is preferably molded onto the first contact element and / or the second contact element.
  • first sealing element and / or the second sealing element in particular in embodiments in which they form part of the cover element, have a treated surface and / or are subjected to a surface treatment.
  • the second sealing element is and / or is anodized in a contact area with the second cell terminal and / or has a surface with increased roughness.
  • a surface with an increased roughness can for example be produced by means of sandblasting and / or can be produced. It can be provided that the second contact element rests against the cover element in a region of a second opening of the cover element and / or is in direct material and / or electrical contact with it. The cover element can thus be brought to a potential of the second cell terminal.
  • the first contact element comprises at least two contact element components which, in particular, comprise metallic materials that are different from one another or are formed therefrom.
  • a first contact element component of the first contact element comprises or is formed from a first metallic material, for example aluminum
  • a second contact element component of the first contact element comprises or is formed from a second metallic material, for example copper.
  • the at least two contact element components of the first contact element are preferably cohesively connected to one another in the first connection area, for example by means of laser welding and / or roll cladding.
  • the at least two contact element components of the first contact element outside the first connection area are materially connected to one another, in particular by means of laser welding and / or roll cladding.
  • the first contact element comprises a third contact element component which, for example, is connected to the first contact element component and / or to the second contact element component.
  • the second contact element comprises at least two contact element components.
  • the at least two contact element components of the second contact element are connected to one another in a materially bonded manner, in particular in the second connection area, in particular by means of laser welding and / or roll cladding.
  • the different contact element components of the second contact element outside the second connection area are materially connected to one another, in particular by means of laser welding and / or roll cladding.
  • the second contact element has a first contact element section and a second contact element section
  • these are preferably formed from the same metallic material or comprise the same metallic material.
  • Aluminum is preferred as the metallic material for the second contact element.
  • the second contact element comprises a third contact element component, which is in particular materially connected to the first contact element component and / or to the second contact element component of the second contact element.
  • the material connection takes place, for example, by means of laser welding and / or roll cladding.
  • the first contact element and / or the second contact element are preferably made from a flat material.
  • the first contact element and / or the second contact element are preferably formed in a cross section of at least approximately in the form of an inverted T or in an L shape.
  • the cross section is preferably taken parallel to a main side of the electrochemical cell.
  • the second contact element preferably has at least one safety element.
  • the at least one securing element is formed in particular by an area of a locally reduced cross-sectional area of the second contact element.
  • the cross-sectional area is preferably defined perpendicular to a main extension direction and / or perpendicular to a central axis of the second contact element.
  • the at least one fuse element is preferably at least one fuse.
  • the at least one securing element is arranged in the second connection area.
  • the at least one fuse element forms in particular an overcurrent protection which melts when a critical current and / or a critical voltage is exceeded.
  • the at least one securing element is arranged outside of the second connection area.
  • the at least one securing element is part of the second connecting conductor.
  • the at least one fuse element is sheathed with a polymer material, an electrolyte-resistant thermoplastic polymer material preferably being used here. It can be favorable if the first contact element has a first resin material filling opening for filling the first resin material into the first connection area.
  • the second contact element preferably has a second resin material filling opening for filling the second resin material into the second connection area.
  • the first connecting conductor has an average thickness which is approximately 1/10 or less of an average width of the first connecting conductor taken perpendicular to the thickness.
  • the average thickness of the first connecting conductor is preferably approximately 0.8 mm or less, for example approximately 0.7 mm or less.
  • the second connecting conductor has an average thickness which is approximately 1/10 or less of an average width of the second connecting conductor taken perpendicular to the thickness.
  • the average thickness of the second connecting conductor is preferably approximately 0.8 mm or less, for example approximately 0.7 mm or less.
  • the first connecting conductor and / or the second connecting conductor preferably each have a homogeneous thickness over their entire extent.
  • the comparatively small average thickness of the first connecting conductor and / or of the second connecting conductor can preferably Material can be saved. This can reduce costs for the corresponding elements.
  • the first contact element has an average thickness in a first joining area which is approximately 2/10 or less, in particular approximately 1/10 or less, of an average width of the first contact element taken perpendicular to the thickness.
  • the average thickness of the first contact element in the first joining area is preferably approximately 0.8 mm or less, for example approximately 0.7 mm or less.
  • the first joining area is preferably an area in which the first contact element and the first cell terminal are connected to one another.
  • the first contact element in the first joining area is passed through a passage opening in the first cell terminal.
  • the second contact element has an average thickness in a second joining area which is approximately 2/10 or less, in particular approximately 1/10 or less, of an average width of the second contact element taken perpendicular to the thickness.
  • the average thickness of the second contact element in the second joining area is preferably approximately 0.8 mm or less, for example approximately 0.7 mm or less.
  • the second joining area is preferably an area in which the second contact element and the second cell terminal are connected to one another.
  • the second contact element in the second joining area is guided through a passage opening in the second cell terminals.
  • an average width of the first contact element in a first joining area with the first cell terminal is approximately Vi or is less, in particular 2/5 or less, than an average width of the first cell terminal in a direction taken parallel to the width of the first contact element.
  • the average width of the first contact element in the first joining area is approximately 10.0 mm or less, for example approximately 9.5 mm or less.
  • an average width of the second contact element in a second joining area with the second cell terminal is approximately Vi or less, in particular 2/5 or less, than an average width of the second cell terminal in a direction taken parallel to the width of the second contact element.
  • the average width of the second contact element in the second joining area is approximately 10.0 mm or less, for example approximately 9.5 mm or less.
  • the average thickness of the first contact element in the first joining area is preferably essentially identical to an average length of the passage opening of the first cell terminal in the first joining area.
  • the average thickness of the second contact element in the second joining area is essentially identical to an average length of the passage opening of the second cell terminal in the second joining area.
  • the average width of the first contact element in the first joining area preferably corresponds essentially to an average width of the passage opening of the first cell terminal.
  • the average width of the second contact element in the second joining area corresponds essentially to an average width of the passage opening of the second cell terminal.
  • first connecting conductor and the first contact element are formed in one piece and / or if the second connecting conductor and the second contact element are formed in one piece.
  • the first contact element is preferably formed at least approximately rectangular in a cross section taken parallel to a main plane of extent of the cover element.
  • the second contact element is at least approximately rectangular in a cross section taken parallel to the main plane of extent of the cover element.
  • an average thickness of the cover element in a cross section taken perpendicular to its main extension plane is approximately 1/10 or less, for example approximately 1/20 or less, of an average width of the cover element perpendicular to its thickness.
  • the average thickness of the cover element is approximately 1.9 mm or less, for example approximately 1.8 mm or less.
  • the electrochemical cell can be produced comparatively inexpensively.
  • the electrochemical cell comprises at least one snap-on element which, when a critical pressure and / or a critical temperature in the interior of the electrochemical cell is exceeded, can be and / or is deflected from an idle state into a working state, and thus establishing electrical contact between the cover element and the first cell terminal.
  • a critical pressure and / or a critical temperature in the interior of the electrochemical cell is exceeded, can be and / or is deflected from an idle state into a working state, and thus establishing electrical contact between the cover element and the first cell terminal.
  • the snap-on element can in particular be welded into a housing cover of the housing of the electrochemical cell.
  • the snap-on element is deflected outward at a predetermined internal cell pressure and thereby creates an electrically conductive connection between the cover element and the first cell terminal.
  • the increased internal cell pressure is created in particular by electrochemical processes and by the heat generated when the electrochemical cell is overcharged. Since the cover element is at the opposite electrical potential, for example at the potential of the second cell terminal, the electrochemical cell is short-circuited by the contact of the snap-on element with the first cell terminal.
  • the at least one fuse element for example at least one fuse, can be triggered by the short circuit.
  • the first contact element is preferably cohesively and / or positively and / or non-positively connected to the insulating element of the electrochemical cell. Additionally or alternatively, it can be provided that the second contact element is materially and / or positively and / or non-positively connected to the insulating element of the electrochemical cell.
  • first contact element and / or the second contact element engage behind the insulating element in a direction perpendicular to a main extension plane of the cover element.
  • the insulating element is connected to the cover element on an inside of the cover element facing the interior space.
  • the insulating element preferably has, adjacent to the first connection area and / or adjacent to the second connection area, at least one filling opening for filling the first resin material into the first connection area and / or for filling the second resin material into the second connection area.
  • At least one filler channel is connected to the at least one filler opening, which in particular connects the at least one filler opening to a recess of the insulating element which delimits the first connection area and the second connection area.
  • two filling channels are formed which have an at least approximately Y-shaped cross section and each open into a recess in the insulating element.
  • the insulating element of the electrochemical cell has a plurality of depressions for receiving the first potting element and / or of the second potting element, wherein in the recesses in particular one or more flow guide elements for distributing the first resin material and / or the second resin material are arranged during the manufacture of the electrochemical cell.
  • the depressions are, for example, pocket-shaped.
  • the recesses preferably form a cavity for receiving the first resin material and / or the second resin material.
  • the one or more flow guide elements preferably have an at least approximately rectangular cross section, an at least approximately oval cross section or an at least approximately spiral cross section.
  • a cross section of the one or more flow guide elements is V-shaped.
  • the cross section is preferably taken parallel to a main plane of extent of the insulating element.
  • Optimized properties are preferably achieved if in the first connection area and / or the second connection area: a distance between the cover element and the first cell terminal in a direction arranged parallel to the central axis of the first contact element and / or a distance between the cover element and the second cell terminal is 0.05 mm or more in a direction parallel to the central axis of the second contact element; and / or a distance between the first contact element and the cover element in the region of the first opening of the cover element and / or a distance between the second contact element and the cover element is 0.05 mm or more in the region of the second opening of the cover element; and / or a ratio between the first-mentioned distance and a thickness of the cover element is in a range of approximately 0.005 and 1.
  • the present invention further relates to an electrochemical system comprising one or more electrochemical cells according to the invention.
  • the electrochemical system according to the invention preferably has one or more of the features described in connection with the electrochemical cell according to the invention and / or one or more of the advantages described in connection with the electrochemical cell according to the invention.
  • the present invention also relates to a method for producing an electrochemical cell, in particular an electrochemical cell according to the invention.
  • the method preferably comprises the provision of a cover element which comprises a first opening and / or a second opening.
  • the first opening is, for example, at least one anode opening.
  • the second opening is, for example, at least one cathode opening.
  • the first opening is at least one cathode opening and / or that the second opening is at least one anode opening.
  • a first contact element which is connected or can be connected in particular to a first cell terminal, is preferably positioned in the first opening.
  • a second contact element which in particular is or can be connected to a second cell terminal, is positioned in the second opening.
  • a first resin material is preferably poured into a first connection area surrounded by the cover element, the first contact element and in particular the first cell terminal in a casting process.
  • a second resin material is poured into a second connection area surrounded by the cover element, the second contact element and in particular the second cell terminal in a casting process.
  • the method preferably further comprises drying and / or curing of the first resin material to form a first potting element and / or drying and / or curing of the second resin material to form the second potting element.
  • the cover element is then preferably connected to a further housing component of the housing, in particular in a materially bonded manner, for example by means of welding.
  • the method according to the invention preferably has one or more of the features described in connection with the electrochemical cell according to the invention and / or one or more of the advantages described in connection with the electrochemical cell according to the invention.
  • At least one first sealing element is applied to the cover element and / or introduced into the cover element, which surrounds the first connection area radially with respect to a central axis of the first contact element.
  • at least one second sealing element is applied to the cover element and / or introduced into the cover element on an outside of the cover element facing away from the interior of the electrochemical cell, which radially surrounds the second connection area with respect to a central axis of the second contact element.
  • the cover element is connected to an insulating element in a force-locking and / or form-locking manner before, during or after the filling of the first resin material and / or the second resin material.
  • the first cell terminal is preferably connected to the first contact element in a materially bonded manner, for example by means of laser welding, before or after the first contact element is cast and / or the first potting element is produced.
  • the second cell terminal is preferably connected to the second contact element in a materially bonded manner, for example by means of laser welding, before or after the second contact element is cast and / or the second potting element is produced.
  • a relative position of the cover element and the insulating element is fixed during the drying and / or curing of the first resin material and / or second resin material by means of a holding element, for example by means of a hold-down device.
  • the corresponding assembly is preferably hardened, for example in a hardening line.
  • a first recessed area to be introduced into a base body of the cover element, for example through Shape.
  • the first recessed area preferably serves as a receptacle for the first potting element.
  • the first resin material is filled in the first recessed portion in a flowable state.
  • a second recessed area is introduced into the cover element, for example by embossing.
  • the second recessed area is preferably used as a receptacle for the second potting element.
  • the second resin material is filled in the second recessed portion in a flowable state.
  • the first resin material is filled through a first resin material filling opening in the first contact element into a cavity which forms the first potting element in the cured state.
  • the second resin material is preferably filled through a second resin material filling opening in the second contact element into a cavity which forms the second potting element in the cured state.
  • filling can take place via filling openings in the insulating element.
  • Show it: 1 shows a schematic sectional view of a first embodiment of an electrochemical cell in which a first contact element is fixed to a cover element of a housing by means of a first potting element and in which a second contact element is fixed to the cover element by means of a second potting element;
  • FIG. 2 shows a schematic sectional illustration of the first contact element from FIG. 1, a first contact element component and an L-shaped second contact element component of the first contact element being materially connected to one another;
  • FIG. 3 shows a schematic plan view of the first contact element along a direction indicated by III in FIG. 2;
  • FIG. 4 shows a schematic sectional illustration of the second contact element from FIG. 1, the second contact element having an L-shape;
  • FIG. 4 shows a schematic sectional illustration of the second contact element from FIG. 1, the second contact element having an L-shape;
  • FIG. 5 shows a schematic plan view of the second contact element along a direction denoted by V in FIG. 4;
  • FIG. 6 shows a detail of the schematic sectional view from FIG. 1;
  • FIG. 7 shows an enlarged illustration of that designated by VII in FIG. 6
  • FIGS. 1 to 7 shows a schematic plan view of the cover element of the electrochemical cell from FIGS. 1 to 7;
  • FIG. 9 shows a schematic plan view of the cover element of the electrochemical cell from FIG. 1 during a manufacture Position of the electrochemical cell, wherein a first sealing element is applied around a first opening of the cover element around and at a distance therefrom, and wherein a second sealing element is applied around a second opening of the cover element and at a distance therefrom;
  • FIG. 10 shows a schematic plan view of the insulating element of the electrochemical cell from FIG. 1;
  • FIG. 11 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, the insulating element being designed in two parts;
  • FIG. 12 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, the insulating element having a compensating element centrally between a first opening for passing through the first contact element and a second opening for passing through the second contact element;
  • FIG. 13 shows a schematic plan view of a section of a further embodiment of an electrochemical cell in which a first recess of the first cell terminal is at least approximately oval and in which a second recess of the second cell terminal is at least approximately oval;
  • FIG. 14 shows a schematic plan view of the cover element from FIG.
  • FIG. 15 shows a schematic plan view of the insulating element of the further embodiment of an electrochemical cell from FIGS. 13 and 14, the insulating element having at least one has an approximately oval first opening and an at least approximately approximately oval second opening and wherein the insulating element is optionally designed in two parts;
  • FIG. 16 shows a schematic plan view of a section of a further embodiment of an electrochemical cell, in which a passage opening of the first cell terminal and a passage opening of the second cell terminal each have a main direction of extent, which are arranged at least approximately approximately parallel to a main side of the electrochemical cell;
  • FIG. 17 shows a schematic plan view of a section of the electrochemical cell from FIG. 16 during manufacture
  • FIG. 18 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which a fuse element of the second contact element in the form of a fuse is arranged outside a second connection area;
  • FIG. 19 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell
  • FIG. 20 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, the first potting element and the second potting element not engaging behind the cover element in a direction arranged perpendicular to a main plane of extent of the cover element;
  • FIG. 21 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, wherein the electrochemical cell comprises a snap-on element in the form of a spring element, by means of which the first cell terminal can be electrically conductively contacted with the cover element in the event of a critical pressure and / or a critical temperature in an interior of the electrochemical cell being exceeded;
  • FIG. 22 shows a schematic plan view of the cover element of the electrochemical cell from FIG. 21 during the production of the electrochemical cell;
  • FIG. 23 shows a schematic plan view of the insulating element of the electrochemical cell from FIGS. 21 and 22;
  • FIG. 24 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the first contact element and the second contact element each have an at least approximately T-shaped cross section;
  • FIG. 25 shows a schematic sectional illustration of the first contact element from FIG. 24, which comprises three contact element components
  • FIG. 26 shows a schematic plan view of the first contact element along a direction denoted by XXVI in FIG. 25;
  • FIG. 26 shows a schematic plan view of the first contact element along a direction denoted by XXVI in FIG. 25;
  • FIG. 27 shows a schematic sectional illustration of the second contact element from FIG. 24, which comprises at least two contact element components
  • 28 shows a plan view of the second contact element from FIG. 27 along a direction designated by XXVIII in FIG. 27;
  • 29 shows a schematic sectional illustration of a first contact element of a further embodiment of an electrochemical cell which is at least approximately oval in a cross section taken parallel to a main plane of extent of the cover element;
  • FIG. 29 along a direction indicated by XXX in FIG. 29;
  • FIG. 31 shows a schematic sectional illustration of a second contact element of the electrochemical cell from FIGS. 29 and 30, the second contact element being at least approximately oval in a cross section taken parallel to the main extension plane of the cover element;
  • FIG. 32 shows a schematic plan view of the second contact element from FIG. 31 along a direction indicated by XXXII in FIG. 31;
  • FIG. 33 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which elevations of the cover element form lateral delimitations of the first potting element and the second potting element;
  • FIG. 34 shows a schematic plan view of the cover element of the electrochemical cell from FIG. 33 during the production of the electrochemical cell;
  • FIGS. 34 and 35 shows a schematic plan view of an insulating element of the electrochemical cell from FIGS. 34 and 35, the insulating element having a plurality of positioning projections which each have an at least approximately rectangular cross-section;
  • FIG. 36 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the first contact element and the second contact element are each connected to the insulating element in a force-locking and / or form-locking manner relative to the latter;
  • FIG. 37 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the insulating element has a first filling opening for filling a first resin material into the first connection area and a second filling opening for filling a second resin material into the second connection area;
  • FIG. 38 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the second cell terminal rests against an elevation of the cover element designed as a second sealing element;
  • 39 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the second contact element is in material contact with an edge region of a second opening of the cover element;
  • FIG. 40 shows a schematic sectional illustration of a further embodiment of an electrochemical cell in which the first contact element is by means of a first connecting conductor and the second contact element are connected laterally to the electrochemical element by means of a second connecting conductor;
  • FIG. 41 shows a schematic sectional illustration of the first contact element and the first cell terminal of the electrochemical cell from FIG. 40;
  • FIG. 42 shows a schematic plan view of the first contact element from FIG. 41 along a direction denoted by XLII in FIG. 41;
  • FIG. 43 shows a schematic sectional illustration of the second contact element and the first cell terminal of the electrochemical cell from FIG. 40;
  • FIG. 44 shows a schematic plan view of the second contact element from FIG. 43 along a direction denoted by XLIV in FIG. 43;
  • FIG. 45 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the first resin material is filled into the first connection area and / or the second resin material is filled into the second connection area from a side facing the interior;
  • 46 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the first contact element and the second contact element are each made thinner on a side facing the interior; 47 shows a schematic sectional illustration of a detail of a further embodiment of an electrochemical cell, in which the cover element and the insulating element can be held together by means of the first contact element and / or the second contact element when the first potting element and / or the second potting element are formed;
  • FIG. 48 shows a schematic sectional illustration of the first contact element and the first cell terminal of the electrochemical cell from FIG. 47;
  • FIG. 48 along a direction indicated by XLIX in FIG. 48;
  • FIG. 50 shows a schematic sectional illustration of the second contact element and the second cell terminal of the electrochemical cell from FIG. 47;
  • FIG. 51 shows a schematic plan view of the second contact element from FIG. 50 along a direction denoted by LI in FIG. 50;
  • FIG. 52 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, in which the insulating element in the area of the first connection area and in the area of the second connection area each have pocket-like depressions in which V-shaped flow guide elements are arranged;
  • FIG. 52 along a plane designated by LIII in FIG. 52; FIG.
  • FIG. 54 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, at which two flow guide elements are arranged at a distance from one another in a first recess and in a second recess of the insulating element;
  • FIG. 55 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, in which a first pocket-like depression and a second pocket-like depression are formed, positioning projections arranged in the pocket-like depressions serving as flow guide elements;
  • FIG. 56 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, in which the insulating element has a first filling channel for filling the first depression and a second filling channel for filling the second depression;
  • 57 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, in which the insulating element has a plurality of filling openings arranged in edge regions of the first recess and a plurality of filling openings arranged in edge regions of the second recess;
  • 58 shows a schematic plan view of an insulating element of a further embodiment of an electrochemical cell, in which the insulating element has a first flow-guiding element arranged in a spiral around a first opening of the insulating element and a second flow-guiding element arranged in a spiral around a second opening of the insulating element;
  • 59 shows a schematic top view of an insulating element of a further embodiment of an electrochemical cell, in which a first flow-guiding element surrounds the first opening of the insulating element equidistantly and in which a second flow-guiding element surrounds the second opening of the insulating element equidistantly, the height of the flow-guiding elements being different can;
  • 60 shows a schematic plan view of a variant of a sealing element, according to which the sealing element has an at least approximately rectangular cross section;
  • 61 shows a schematic plan view of a further variant of a
  • Sealing element according to which the sealing element has at least one interruption on a side facing away from the opening of the cover element;
  • Sealing element according to which the sealing element has a cross section of a truncated ellipse
  • FIG. 63 shows a schematic plan view of a further variant of a
  • Sealing element according to which the sealing element has a curvature on a side facing away from the opening of the cover element;
  • 64 shows a schematic plan view of a further variant of a
  • Sealing element according to which the sealing element on a side facing away from the opening of the cover element has two arches adjoining one another;
  • 65 shows a schematic plan view of a further variant of a
  • Sealing element according to which the sealing element to the inside has protruding projections whose main direction of extension is at least approximately parallel to a main direction of extension of the opening of the cover element;
  • 66 shows a schematic plan view of a further variant of a sealing element, according to which the inwardly projecting protrusions of the sealing element are inclined towards the opening of the cover element;
  • 67 shows a schematic plan view of a further variant of a sealing element, according to which three inwardly projecting protrusions of the sealing element are arranged alternately on opposite sides of the sealing element;
  • FIG. 68 shows a schematic plan view of a further variant of a sealing element, according to which the inwardly projecting jumps are designed to be inclined away from the opening of the cover element;
  • 69 shows a schematic plan view of a further variant of a sealing element, according to which several projections of the sealing element are spaced apart from a base body of the sealing element and are surrounded by the base body;
  • FIG. 70 shows a schematic plan view of a further variant of a sealing element, according to which the sealing element has a protrusion, which has an at least approximately circular cross section and which is arranged at a distance from the base body of the sealing element;
  • 71 shows a schematic plan view of a further variant of a sealing element, according to which the projection has an at least approximately oval cross section; 72 shows a schematic plan view of a further variant of a
  • Sealing element according to which the sealing element comprises a base body made of a polymer material and at least one projection made of a metallic material;
  • 73 shows a schematic plan view of a cell terminal in which an opening is at least approximately rectangular and has a main direction of extent which is arranged at least approximately parallel to a narrow side of the cell terminal;
  • 74 shows a schematic plan view of a cell terminal in which a main direction of extent of the opening is arranged at least approximately parallel to a broad side of the cell terminal;
  • FIG. 75 shows a schematic plan view of a cell terminal, in which an opening is at least approximately oval and has a main direction of extent which is arranged at least approximately approximately parallel to a narrow side of the cell terminal;
  • 76 shows a schematic plan view of a cell terminal in which a main direction of extent of the opening is at least approximately parallel to a broad side of the cell terminal;
  • 77 shows a schematic perspective illustration of a section of a further embodiment of an electrochemical cell, in which the second cell terminal is arranged on a second recessed area of the cover element; 78 shows a schematic perspective illustration of the cover element from FIG. 77, in which the second recessed area forms a potting basin for the second potting element;
  • FIGS. 77 and 78 shows a schematic perspective illustration of a section of the embodiment of an electrochemical cell from FIGS. 77 and 78, in which the first contact element has a first filling opening for the first resin material and in which the second contact element has a second filling opening for the second resin material having;
  • the first contact element is connected to the first connecting conductor, the first contact element and the first connecting conductor forming at least approximately an L-shape in a cross section taken perpendicular to the main extension plane of the cover element;
  • FIG. 84 shows a schematic perspective illustration of a section of a further embodiment of an electrochemical cell in which the connecting conductors, the cell terminals and / or the insulating element have reduced thicknesses and / or in which the first cell terminal and / or the second cell terminal have passage openings which have a reduced average width;
  • FIG. 85 shows a schematic perspective illustration of a section of the electrochemical cell from FIG. 84, wherein the first contact element and the first connecting conductor are designed in one piece and / or wherein the second contact element and the second connecting conductor are designed in one piece;
  • 1 to 10 show a first embodiment of an electrochemical cell designated as a whole by 100, as well as individual components thereof.
  • the electrochemical cell 100 is, for example, a battery cell and / or an accumulator cell.
  • the electrochemical cell 100 is a lithium ion cell.
  • the electrochemical cell 100 preferably forms part of an electrochemical system 102, which in particular comprises a plurality of electrochemical cells 100.
  • the electrochemical system 102 is, for example, an accumulator module and / or a battery module.
  • the electrochemical cell 100 is used in a vehicle.
  • the electrochemical cell 100 preferably comprises a housing 104 for receiving an electrochemical element 106.
  • the housing 104 surrounds an interior 108 of the electrochemical cell 100 and comprises a cover element 110 as a first housing component.
  • the cover element 110 preferably covers a further housing component 112 of the housing 104 and / or is and / or is connected to the further housing component 112 in a fluid-tight manner.
  • the further housing component 112 is designed in particular trough-shaped or cup-shaped. It preferably surrounds the interior 108 of the electrochemical cell 100 on five sides.
  • the housing 104 of the electrochemical cell 100 is preferably at least approximately cuboid.
  • the cover element 110 is formed in the form of a plate, for example from a sheet metal.
  • the cover element 110 comprises a metallic material, for example aluminum, or is formed from the metallic material.
  • the cover element 110 is formed from a metal sheet, for example from an aluminum sheet.
  • the cover element 110 is and / or is preferably cohesively connected to the further housing component 112 of the housing 104, preferably by means of welding, for example by means of laser welding.
  • the electrochemical element 106 is in particular a so-called cell wrap.
  • the electrochemical element 106 is connected to or comprises a first connecting conductor 114 and a second connecting conductor 116.
  • the first connecting conductor 114 is used in particular to electrically connect the electrochemical element 106 to a first cell terminal 118 of the electrochemical cell 100, in particular via a first contact element 120 of the electrochemical cell 100.
  • the second connecting conductor 116 is preferably used to electrically connect the electrochemical element 106 to a second cell terminal 122 of the electrochemical cell 100, in particular via a second contact element 124 of the electrochemical cell 100.
  • the second cell terminal 122 preferably comprises or is formed from a first metallic material, for example aluminum.
  • the second cell terminal 122 is designed as a cathode.
  • the second cell terminal 122 is designed as an anode (not shown).
  • the electrical connection of the electrochemical element 106 to the first cell terminal 118 and / or the second cell terminal 122 is in particular given by the fact that the respective connecting conductor 114, 116 is fixed on the one hand to the electrochemical element 106 and on the other hand to the respective contact element 120, 124 is.
  • the first connecting conductor 114 and / or the second connecting conductor 116 are fixed to the electrochemical element 106 on a side of the electrochemical element 100 facing the cover element 110, in particular from above.
  • the first cell terminal 118 preferably comprises a first metallic material, for example aluminum, or is formed therefrom.
  • the first cell terminal 118 is designed as an anode.
  • the first cell terminal 118 is a cathode (not shown). It can be advantageous if the first cell terminal 118 has a passage opening 119 through which a first contact element component 120a of the first contact element 120 is passed (cf. FIG. 8).
  • the first cell terminal 118 and the second cell terminal 122 are configured identically in the present case.
  • the cell terminals 118 and 122 are shown separately in FIG. 73.
  • the passage opening 119 of the first cell terminal 118 has in particular a shape which is at least approximately complementary to a cross section of the first contact element 120.
  • first cell terminal 118 and / or the second cell terminal 122 each have a cuboid recess.
  • the first cell terminal 118 is preferably materially connected, for example by means of welding, to a first contact element component 120a of the first contact element 120.
  • the first contact element component 120a preferably comprises the same material as the first cell terminal 118 or is formed therefrom.
  • first contact element component 120a of the first contact element 120 comprises aluminum or is formed therefrom.
  • the first contact element 120 preferably comprises a second contact element 120b, which in particular comprises a second metallic material or is formed therefrom.
  • the second metallic material differs in particular from the first metallic material.
  • the second contact element component 120b of the first contact element 120 comprises copper or is formed therefrom. It can be favorable if the first contact element component 120a and the second contact element component 120b of the first contact element 120 are connected to one another in a materially bonded manner, for example by means of laser welding and / or roll cladding.
  • the second contact element component 120b has at least approximately an L-shape in a cross section taken perpendicular to a main side of the electrochemical cell 100.
  • the second contact element component is preferably bent into the L-shape.
  • one leg of the L-shape has a main extension plane which is arranged at least approximately parallel to a main extension plane of the cover element 110, the first connection conductor 114 can be connected to the second contact element component 120b over a large area.
  • first connecting conductor 114 is firmly bonded to a leg of the first contact element 120 facing away from the first cell terminal 118, for example on an underside thereof facing away from the cover element 110, in particular by means of welding.
  • the cover element 110 preferably comprises a first opening 126a through which the first contact element 120 is passed.
  • the first opening 126a of the cover element 110 is, for example, at least one anode opening.
  • the first opening 126a of the cover element 110 is at least one cathode opening (not shown). It can be advantageous if the first contact element 120 and the first cell terminal 118 fixed on it are fixed in a first connection area 130 by means of a first potting element 128.
  • the first potting element 128 preferably completely fills the first connection area 130.
  • an area formed in the area of the first opening 126a between the cover element 110 and the first contact element 120 is completely filled.
  • the first potting element 128 is preferably formed from a first polymer material which comprises a first resin material or is formed therefrom.
  • the first resin material comprises or is formed from one or more of the following materials: epoxy resin material, phenolic resin material, aminoplast material, polyurethane material, silicone material, polyester resin material, ABS resin material.
  • the first resin material in a cured state to the first polymer material has a hardness of approx. 40 Shore D or more, in particular of approx. 50 Shore D, for example of approx. 60 Shore D or more.
  • the hardness of the first resin material in a cured state relative to the first polymer material is approximately 100 Shore D or less, in particular approximately 97 Shore D or less, for example approximately 95 Shore D or less.
  • the hardness is determined in particular according to DIN EN ISO 868. It can be favorable if the first resin material has a glass transition temperature of approx. 90 ° C. or more, in particular of approx. 95 ° C. or more, for example of approx. 100 ° C. or more.
  • the glass transition temperature is preferably based on a hardened state of the first resin material to the first polymer material.
  • the first resin material is preferably a one-component resin material, for example a one-component epoxy resin material.
  • One-component epoxy resin materials preferably have an increased stability with respect to an electrolyte which is received in the interior 108.
  • the first resin material comprises one or more fillers.
  • the one or more fillers are preferably selected from: inorganic fillers, in particular silicon oxide, carbonate, carbide, in particular silicon carbide, nitride, in particular metal nitride, metal oxide.
  • Preferred silicon oxides are silicates.
  • connection area 130 and / or the first potting element 128 on an outside of the cover element 110 facing away from the interior 108 of the electrochemical cell from an underside of the first cell terminal 118 facing the interior 108 of the electrochemical cell 100 and laterally from a first Sealing element 134 is limited.
  • the first sealing element 134 is preferably applied in a printing process, for example in a pattern printing process, in particular in a screen printing process, a stencil printing process and / or a pad printing process, to an upper side of the cover element 110 facing away from the interior 108.
  • a third polymer material is applied to the upper side of the cover element 110 by means of an application element and, in particular, is then cured and / or dried.
  • the first sealing element 134 is and / or is formed by a sealing bead.
  • the third polymer material comprises or is formed from a thermoplastic polymer material, a thermosetting polymer material and / or an elastomeric polymer material.
  • the third polymer material preferably comprises or is formed from one or more of the following materials: polyolefin, in particular polypropylene and / or polyethylene, polyester, in particular polyethylene terephthalate and / or polybutylene terephthalate, polyamide, polyimide, copolyamide, polyamide elastomer, polyether, in particular Epoxy resins, polyurethane, polyurethane-acrylate, polyvinyl chloride, polystyrene, polymethyl methacrylate, acryl-butadiene-styrene, synthetic rubber, in particular ethylene-propylene-diene rubber, polycarbonate, polyethersulfone, polyoxymethylene, poly ether ether ketone, polytetrafluoroethylene, silicone, especially silicone rubber and / or silicone rubber Elastomer.
  • polyolefin in particular polypropylene and / or polyethylene
  • polyester in particular polyethylene terephthalate and / or polybutylene terephthalate
  • Thermoplastic polymer materials are preferably used for the third polymer material.
  • hot melt materials are used for the third polymer material.
  • the third polymer material comprises one or more fillers, the one or more fillers being selected, for example, from: inorganic fillers, for example silicon oxide, carbonate, silicon carbide, metal oxide, nitride, in particular metal nitride.
  • the first sealing element 134 is at least approximately rectangular in a cross section taken parallel to the main extension plane of the cover element 110.
  • first sealing element 134 is arranged at a distance from the first opening 126a of the cover element 110, the first sealing element 134 preferably having the same circumferential distance from an edge of the cover element 110 surrounding the opening.
  • the electrochemical cell 100 preferably comprises an insulating element 136, which is used in particular to insulate the interior space 108 and / or to secure the first contact element 120 and the second contact element 124 in a more stable manner.
  • the insulating element 136 is preferably at least approximately plate-shaped and / or is fixed on the cover element 110 on an inner side 132 of the cover element 110 facing the interior space 108, in particular in a materially and / or non-positively and / or positively locking manner.
  • the insulating element 136 preferably comprises a fifth polymer material or is formed from the fifth polymer material.
  • the fifth polymer material is preferably a thermoplastic polymer material, for example an injection-moldable and / or electrolyte-resistant thermoplastic polymer material.
  • the insulating element 136 is preferably an injection molded element. It can be provided that the insulating element 136 is produced separately, for example in an injection molding process, and then connected to the cover element 110.
  • the insulating element 136 is molded onto the cover element 110.
  • the insulating element 136 comprises one or more, in the present case four (see, for example, FIG. 9), positioning projections 138.
  • the one or more positioning projections 138 extend away from a base body of the insulating element 136, preferably along a direction pointing from the interior space 108 in the direction of the cell terminals 118, 122.
  • the positioning projections 138 preferably engage in complementary positioning recesses 140 of the cover element 110.
  • the positioning projections 138 engage behind the cover element 110 in a direction arranged parallel to a main extension plane of the cover element 110.
  • the positioning projections 138 are designed in the form of pins, for example as positioning pins.
  • a displaceability of the cover element 110 and the insulating element 136 is preferably blocked by means of the positioning projections 138 engaging in the positioning recesses 140 relative to one another parallel to a main extension plane of the cover element 110.
  • the insulating element 136 has a curvature and / or depression 165 facing the first connection region 130, in particular such that part of the first potting element 128 is received between the cover element 110 and the insulating element 136.
  • the first potting element 128 engages behind the cover element 110 in a direction running parallel to a central axis 142 of the first contact element 120.
  • the electrochemical cell 100 has at least one predetermined breaking point 144 which tears and / or breaks when a critical interior temperature and / or a critical interior pressure is exceeded.
  • the at least one predetermined breaking point 144 is designed as a material weak point in the cover element 110.
  • a predetermined breaking point 144 is arranged centrally between the first cell terminal 118 and the second cell terminal 122.
  • the insulating element 136 has recesses 146 (designated by way of example), preferably in the region of the at least one predetermined breaking point 144, in particular regularly arranged recesses.
  • the recesses 146 are preferably delimited by webs, in particular arranged in a cross shape.
  • a splash guard can be formed by the bar structure.
  • the insulating element 136 has several, in the present case two, depressions 165 (indicated by dashed lines in FIG. 10), in the region in which the insulating element 136 has a reduced thickness.
  • the recesses 165 are preferably used to receive resin material and / or limit a volume formed by the respective connecting area 130, 156 to the interior 108 of the electrochemical cell 100.
  • the electrochemical cell 100 preferably has an electrolyte filling opening 148 which extends through the cover element 110 and the insulating element 136 and / or is used to fill the interior 108 with electrolyte.
  • the second contact element 124 is fixed on the cover element 110 by means of a second potting element 150.
  • the second potting element 150 preferably completely fills a second connection area 156.
  • the second potting element 150 is preferably formed from a second polymer material.
  • the second polymer material comprises or is formed from a second resin material.
  • the second resin material preferably has a glass transition temperature of approx.
  • the second polymer material comprises or is formed from one or more of the following materials: epoxy resin material, phenolic resin material, aminoplast material, polyurethane material, silicone material, polyester resin material, ABS resin material.
  • the second resin material In a cured state, the second resin material preferably has a hardness of approx. 40 Shore D or more, in particular approx. 50 Shore D or more, for example approx. 60 Shore D or more.
  • the hardness of the second resin material cured to form the second polymer material is preferably approximately 100 Shore D or less, in particular approximately 97 Shore D or less, for example 95 Shore D or less.
  • the hardness is preferably determined in accordance with DIN ISO 868.
  • the second resin material comprises one or more fillers.
  • the fillers are selected, for example, from one or more of the following: inorganic fillers, in particular silicon oxide, carbonate, carbide, in particular silicon carbide, nitride, in particular metal nitride, metal oxide.
  • the second resin material comprises an epoxy resin material or is formed therefrom.
  • the second resin material preferably comprises a one-component resin material, for example a one-component epoxy resin material, or is formed therefrom.
  • the first resin material and the second resin material are identical.
  • the first resin material and the second resin material are chemically and / or physically different resin materials from one another.
  • first resin material in the manufacture of the first potting element 128 and / or the second resin material in the manufacture of the second potting element 150 has a viscosity of approx. 10 2 mPa-s or more, in particular of approx. 10 3 mPa -s or more.
  • the viscosity of the first resin material and / or the second resin material in a production of the electrochemical cell 100 is preferably about 10 6 mPa ⁇ s or less, in particular 10 5 mPa ⁇ s or less.
  • a filling of the first connection area 130 with the first resin material and / or the second connection area 156 with the second resin material preferably takes place at ambient pressure.
  • the electrochemical cell 100 preferably has a second sealing element 152, which in particular radially surrounds and / or delimits the second potting element 150 with respect to a center axis 154 of the second contact element 124 on an outer side of the cover element 110 facing away from the interior 108.
  • the second connecting area 156 in which the second casting element 150 is preferably arranged, is on a side of the cover element 110 facing away from the interior 108, preferably from an underside of the second cell terminal 122 facing the interior 108, a side of the second contact element 124 facing second sealing element 152 limited and / or defined.
  • the second connection region 156 is preferably formed by a recess 165 formed on a side of the insulating element 136 facing away from the interior 108, an inner side 132 of the cover 110 facing the interior 108 and an outer surface of the second contact element 124 limited and / or defined.
  • the second sealing element 152 preferably comprises or is formed from a fourth polymer material.
  • the fourth polymer material is applied to the outside of the cover element 110 by means of an application element and, in particular, is then cured and / or dried.
  • the second sealing element 152 is and / or is formed by a sealing bead.
  • the fourth polymer material comprises or is formed from a thermoplastic polymer material, a thermosetting polymer material and / or an elastomeric polymer material.
  • the fourth polymer material of the second sealing element 152 and the third polymer material of the first sealing element 134 are chemically and / or physically identical.
  • a material selection and / or construction and / or arrangement of the second sealing element 152 corresponds in the present case to the material selection and / or construction and / or arrangement of the first sealing element 134, so that reference is made to the relevant statements.
  • the sealing elements 134, 152 preferably form support surfaces for the cell terminals 118, 122.
  • the first sealing element 134 As an alternative to forming the first sealing element 134 during its manufacture, provision can be made for the first sealing element 134 to be a separate component, in particular a component that can be handled separately.
  • the first sealing element 134 is an insert, for example a plastic frame.
  • the second sealing element 152 is a separate component, in particular a component that can be handled separately.
  • the second sealing element 152 is an insert, for example a metal frame.
  • first sealing element 134 and / or a separately produced second sealing element 152 it can be provided that these are placed in a receiving space provided for this in the cover element 110 and / or in a receiving space in the respective cell terminal 118, 122 (not shown ).
  • first sealing element 134 and the first cell terminal 118 terminate radially flush with respect to the central axis 142 of the first contact element 120.
  • the second sealing element 152 and the second cell terminal 122 close radially with respect to the central axis 154 of the second contact element, flush with one another (see, for example, FIG. 1).
  • the first cell terminal 118 protrudes beyond the first sealing element 134, for example on a side facing a central region of the cover element 110 arranged between the cell terminals 118, 122.
  • the second cell terminal 122 stands beyond the second sealing element 152, for example on a side facing the central region of the cover element 110 arranged between the cell terminals 118, 122 (see, for example, FIG. 8).
  • the second contact element 124 is at least approximately rectangular in a cross section taken parallel to a main extension plane of the cover element 110. It can be advantageous if the second cell terminal 122 has a passage opening 119 which, in particular, is at least approximately complementary to the cross section of the second contact element 124 (cf. FIG. 73).
  • the second contact element 124 is and / or is passed through the passage opening 119 of the second cell terminal 122.
  • an end region of the second contact element component 124b facing away from the interior 108 of the electrochemical cell 100 is materially connected, in particular by means of welding, to an edge region of the second cell terminal 122 surrounding the passage opening 119.
  • the second contact element 124 is preferably made of a flat material, for example in sheet metal form.
  • the second contact element 124 is and / or is bent into an L-shape, a main extension plane of a leg of the L-shape facing away from the second cell terminal 122 having a main extension plane, which is preferably at least approximately parallel to a main extension plane of the cover member 110 is formed from.
  • the second contact element 124 is preferably in one piece.
  • the second contact element 124 has a first contact element component 124a and a second contact element component 124b, which are connected to one another in accordance with the first contact element component 120a and the second contact element component 120b. Reference is made here to the corresponding description.
  • the contact conductor components 124a, 124b of the second contact element 124 are preferably made of the same metallic material or comprise the same metallic material, for example aluminum.
  • the second connecting conductor 116 is materially connected on an underside facing the interior 108 to a leg of the second contact element 124 facing the interior 108, in particular by means of welding.
  • the second contact element 124 for example in the second connection region 156, has at least one securing element 158.
  • the at least one securing element 158 is preferably a region of the second contact element 124 in which the latter has a locally reduced cross-sectional area.
  • the cross-sectional area is preferably defined at least approximately parallel to a main plane of extent of the cover element 110.
  • the cross-sectional area of the second contact element 124 in the region of the at least one securing element 158 is preferably about 20% or more, in particular about 30% or more, in particular about 50% or more, less than an average cross-sectional area of the second contact element 124 in neighboring areas.
  • the at least one securing element 158 is preferably arranged in a leg of the second contact element 124 facing away from the interior space 108.
  • the at least one fuse element 158 is a fuse.
  • the at least one fuse element 158 is preferably used as overcurrent protection, which in particular when a critical Stroms melts. As a result of the melting of the at least one fuse element 158, the second cell terminal 122 is preferably electrically isolated from the electrochemical element 106.
  • the second contact element 124 preferably comprises the first metallic material, for example aluminum, or is formed therefrom.
  • the cover element 110 is preferably positioned on the insulating element 136, in particular in such a way that the positioning projections 138 and the positioning recesses 140 fit into one another.
  • the first contact element 120 is then preferably passed through the first opening 126a of the cover element 110 and a first opening 127a of the insulating element 136.
  • the first opening 127a of the insulating member 136 is at least one anode opening, for example.
  • the first opening 127a of the insulating element 136 is at least one cathode opening (not shown).
  • the second contact element 124 is preferably passed through a second opening 126b of the cover element 110 and a second opening 127b of the insulating element 136.
  • the second opening 126b of the cover element 110 is, for example, at least one cathode opening.
  • the second opening 126b of the cover element 110 is at least one anode opening (not shown).
  • the second opening 127b of the insulating element 136 is at least one cathode opening, for example.
  • the second opening 127b of the insulating element 136 is at least one anode opening (not shown).
  • first contact element 120 and / or the second contact element 124 are fixed relative to the cover element 110 and / or the insulating element 136 by means of a holding element, for example by means of a hold-down device.
  • the first resin material is then preferably filled into the first connection area 130 from above and / or the first connection area 130 is filled, in particular completely, with the first resin material.
  • the second resin material is filled into the second connection region 156 from above and / or the second connection region 156 is filled, in particular completely, with the second resin material.
  • the first cell terminal 118 is preferably materially connected, in particular by means of laser welding, to an edge region of the first contact element 120 facing away from the interior 108.
  • the second cell terminal 122 is materially connected, in particular by means of laser welding, to an edge region of the second contact element 124 facing away from the interior 108.
  • 122 holding elements in the form of hold-down devices are preferably used.
  • the assembly is then hardened, in particular without a holding element. Hardening takes place, for example, in a hardening line.
  • Optimized properties are preferably formed if the first connection area 130 and / or the second connection area 156 has the following features (cf. FIG. 7): a distance a between the cover element 110 and the first cell terminal 118 in a parallel to the central axis 142 Direction and / or a distance a between the cover element 110 and the second cell terminal 122 in a direction parallel to the central axis 154 is 0.05 mm or more; and / or a distance b between the first contact element 120 and the cover element 110 in the area of the first opening 126a of the cover element 110 and / or a distance b between the second contact element 124 and the cover element 110 in the area of the second opening 126b of the cover element 110 is 0.05 mm or more; and / or a ratio between the distance a and a thickness of the cover element 110 is in a range of approximately 0.005 and 1.
  • FIG. 11 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the insulating element 136 is formed in two parts in the present case and has a first insulating element component 136a and a second insulating element component 136b.
  • first insulating element component 136a and the second insulating element component 136b are designed mirror-symmetrically with respect to a plane of symmetry which is arranged at least approximately perpendicular to a main plane of extent of the insulating element 136.
  • the insulating element 136 has a plurality of electrolyte filling openings 148.
  • there are two electrolyte filler openings 148 are arranged in a respective central region of the respective insulating element component 136a, 136b.
  • the two insulating element components 136a, 136b are preferably materially and / or positively and / or non-positively connected to one another.
  • first insulating element component 136a and the second insulating element component 136b are each materially and / or non-positively connected to the cover element 110.
  • an electrochemical cell 100 corresponds to the first embodiment shown in FIGS. 1 to 10 in terms of structure and function, so that reference is made to the description thereof.
  • FIG. 12 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the insulating element 136 shown in FIG. 12 has a compensating element 160 in the middle between the first opening 127a and the second opening 127b.
  • the compensation element 160 is preferably used to compensate for mechanical tensions, which arise in particular due to an excess of a critical pressure in the interior space 108 of the electrochemical cell 100 and / or a critical temperature in the interior space 108 of the electrochemical cell 100.
  • the compensating element 160 is preferably cohesively connected to the first insulating element component 136a arranged laterally thereto and / or the second insulating element component 136b arranged laterally thereto.
  • the insulating element 136 has a plurality of, for example two, electrolyte filler openings 148, which preferably according to FIGS Electrolyte filling openings 148 are arranged in the insulating element 136 shown in FIG. 11.
  • an electrochemical cell 100 which is not shown as a whole in the drawing, essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • the first contact element 120 and / or the second contact element 124 preferably have an at least approximately elliptical and / or oval cross section.
  • the cross section is preferably taken parallel to a main plane of extent of the cover element 110.
  • the first cell terminal 118 and / or the second cell terminal 122 preferably have an at least approximately elliptical and / or oval passage opening 119.
  • the insulating element 136 is preferably formed in two parts. Alternatively, it can be provided that the insulating element 136 is formed in one piece and / or has a compensating element 160.
  • the second electrolyte fill port 148 is optional.
  • the further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing, essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • 16 and 17 show a detail of a further embodiment of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • This further embodiment differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the first contact element 120 and / or the second contact element 124 have a cross section taken perpendicular to a main extension plane of the cover element 110 Have main extension direction, which is arranged at least approximately parallel to a main side of the electrochemical cell 100.
  • main directions of extent of the first opening 126a and / or the second opening 126b of the cover element 110 are in particular arranged at least approximately parallel to the main side of the electrochemical cell 100.
  • FIG. 16 shows a state after the first cell terminal 120 and the second cell terminal 122 have been fixed.
  • a through opening 119 formed in the first cell terminal 118 and / or in the second cell terminal 122 preferably has a main direction of extent which is arranged at least approximately parallel to a main side of the electrochemical cell 100.
  • FIGS. 16 and 17 essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof is taken.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 18, differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the fuse element 158 is arranged outside the second connection region 156 is.
  • the fuse element 158 is sheathed in particular with an electrolyte-resistant thermoplastic polymer material.
  • Polyethylene, polyethylene terephthalate, polypropylene and / or polybutylene terephthalate are preferably suitable as electrolyte-resistant thermoplastic polymer materials.
  • the fuse element 158 for example in the form of a fuse, is arranged adjacent to an end of the second contact element 124 facing away from the second cell terminal 122.
  • FIG. 18 the further embodiment of an electrochemical cell 100 shown in FIG. 18 is not graphically correct as a whole Structure and function essentially correspond to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 19, differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the second contact element 124 does not have a fuse element 158.
  • the securing element 158 forms part of the second connecting conductor 116 (not shown).
  • an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 19, essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially in that the first embodiment of an electrochemical cell 100 shown in FIGS Cover element 110 does not engage behind radially with respect to central axis 142 of first contact element 120 on an inner side 132 of cover element 110 facing interior 108; and / or the second potting element 150 does not engage behind the cover element 110 radially with respect to the center axis 154 of the second contact element 124 on an inner side 132 of the cover element 110 facing the interior space 108. It can be favorable if the first potting element 128 and the second potting element 150 have at least approximately the same shape.
  • first recess 165 of the insulating element 136 correspond at least approximately to the dimensions of the first opening 126a of the cover element 110.
  • the dimensions of a second recess 165 of the insulating element 136 preferably correspond at least approximately to the dimensions of the second opening 126b of the cover element 110.
  • a continuous direct material contact is preferably formed between the insulating element 136 and the cover element 110.
  • an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 20, essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the electrochemical cell 100 comprises a snap-on element 162 , which is in a shown in Fig. 21 Darge normal operating state of the electrochemical cell 100 in an idle state.
  • the first cell terminal 118 is shown larger than the second cell terminal 122 for the sake of clarity.
  • the first cell terminal 118 and the second cell terminal 122 preferably have essentially the same dimensions.
  • the snap-on element 162 In the rest state, the snap-on element 162 preferably extends in the direction of the insulating element 136.
  • the snap-on element 162 changes to a working state in which the snap-on element 162 protrudes into an outer space of the housing 104 when the pressure in the interior 108 of the electrochemical cell 100 exceeds a threshold pressure value (critical pressure) and / or when the temperature in the interior 108 of the housing 104 exceeds a threshold temperature value (critical temperature).
  • a threshold pressure value critical pressure
  • critical temperature critical temperature
  • the snap-on element 162 is preferably arranged in a region of the cover element 110 which is arranged below the first cell terminal 118 in a direction arranged perpendicular to the main extension plane of the cover element 110.
  • the snap-on element 162 is preferably arranged at a distance from the first cell terminal 118.
  • the short circuit between the first cell terminal 118 on the one hand and the housing 104 and the second contact element 124 on the other hand is generated by an increase in the pressure in the interior 108 of the electrochemical cell 100 when the electrochemical cell is overcharged 100 causes a transition of the snap-on element 162 from the rest state shown in FIG. 21 to the working state, not shown in the drawing.
  • the snap-on element 162 presses against the first cell terminal 118, so that the first cell terminal 118 comes into electrically conductive contact with the cover element 110, which triggers a short circuit between the first cell terminal 118 and the housing 104.
  • the fourth polymer material of the second sealing element 152 comprises one or more conductive additives.
  • Suitable conductive additives are preferably one or more of the following: carbon materials, in particular carbon black, graphite, graphene, carbon nanotubes, carbon fibers and / or carbon nano bulbs, particulate metallic materials, in particular metal powder, electrically conductive ceramic materials, in particular nitrides and / or carbides , electrically conductive polymers, in particular trans-polyacetylene, polypyrrole, polyaniline, poly (phenylene), polythiophene and / or polystyrene-doped poly (3,4-ethylene dioxythiophene) (PEDOT: PSS).
  • carbon materials in particular carbon black, graphite, graphene, carbon nanotubes, carbon fibers and / or carbon nano bulbs
  • particulate metallic materials in particular metal powder
  • electrically conductive ceramic materials in particular nitrides and / or carbides
  • electrically conductive polymers in particular trans-polyacetylene, polypyrrole, polyaniline, poly (phenylene), polythioph
  • Preferred particulate metallic materials preferably comprise aluminum, copper, titanium, iron, silver and / or alloys made from the materials mentioned or are formed therefrom.
  • the second sealing element 152 preferably has sufficient electrical conductivity to connect the second contact element 124 to the cover element 110 in an electrically conductive manner.
  • the securing element 158 in particular is activated.
  • the fuse element 158 preferably melts, as a result of which, in particular, the second cell terminal 122 of the electrochemical element 106 is electrical is isolated. In this way, further overcharging of the electrochemical cell 100 can be avoided.
  • the cover element 110 preferably has an opening, for example at least approximately round, into which the snap-on element 162 is introduced, for example by means of welding or gluing.
  • the insulating element 136 preferably has a plurality of recesses in the area of the snap-on element 162, which in particular are arranged regularly.
  • the multiple recesses are separated from one another and / or delimited by webs arranged in the form of a grid (cf. FIG. 23).
  • a splash guard is preferably formed by the webs and / or the recesses, which can reduce or prevent excessive leakage of electrolyte from the interior 108 of the electrochemical cell 100.
  • FIGS. 21 to 23 essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the first embodiment shown in FIGS Has a T-shaped cross section and / or that the second contact element 124 has an at least approximately T-shaped cross section.
  • the cross section is preferably taken parallel to a main side of the electrochemical cell 100. It can be advantageous if the first contact element 120 has a first contact element component 120a which comprises or is formed from a first metallic material, for example aluminum.
  • the first contact element component 120a is cohesively connected to the first cell terminal 118 on the one hand and a second contact element component 120b on the other hand.
  • both the first contact element component 120a and the second contact element component 120b are at least approximately cuboid.
  • the first contact element 120 has a third contact element component 120c, which is attached to the second contact element component 120b in particular on a side of the second contact element component 120b facing away from the first contact element component 120a.
  • the second contact element component 120b is received centrally in an opening of the third contact element component 120c.
  • the second contact element component 120b and the third contact element component 120c of the first contact element 120 are preferably connected to one another in a materially bonded manner, for example by means of laser welding and / or roll cladding.
  • oval-shaped pins are punched out of a contact element component in a cross section and then welded into a metal sheet.
  • the second contact element component 120b and / or the third contact element component 120c of the first contact element 120 preferably comprise a second metallic material, for example copper, or are formed therefrom.
  • the second metallic material is preferably a metallic material different from the first metallic material.
  • the third contact element component 120c is at least approximately cuboid and / or designed as a sheet metal.
  • the third contact element component 120c preferably has an at least approximately rectangular recess through which the second contact element component 120b is and / or is passed (cf. FIGS. 25 and 26).
  • edges of the recesses of the third contact element component 120c and an edge region of the second contact element component 120b facing away from the first contact element component 120b are connected to one another in a materially bonded manner, for example by means of welding.
  • the second contact element 124 is made from several parts.
  • the second contact element 124 preferably comprises a first contact element component 124a which is fixed on the one hand to the second cell terminal 122 and on the other hand to a second contact element component 124b of the second contact element 124, for example by means of welding.
  • a main extension plane of the first contact element component 124a is arranged perpendicular to a main extension plane of the second contact element component 124b.
  • the second contact element component 124b preferably has an at least approximately rectangular recess through which the first contact element component 124a is fixed on a side of the first contact element component 124a facing away from the first cell terminal 122 (cf. FIGS. 27 and 28).
  • the second contact element 124 has a third contact element component, not shown in the drawing, which is for example fixed to the second contact element component 124b (as described in connection with the first contact element 120).
  • the first contact element component 124a, the second contact element component 124b and the third contact element component preferably comprise the same metallic material, for example aluminum, or are formed therefrom.
  • a cross section of the second contact element 124 is preferably rectangular.
  • the cross section is preferably taken at least approximately parallel to a main plane of extent of the cover element 110.
  • FIGS. 24 to 28 corresponds in terms of structure and function to the embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 not shown as a whole in FIGS. 29 to 32 differs in terms of structure and function essentially in that a cross section of the first contact element component 120a of the first Contact element 120 and / or a cross section of the first contact element component 124a of the second contact element 124 is at least approximately elliptical and / or oval.
  • FIGS. 29 to 32 essentially corresponds in terms of structure and function to the embodiment shown in FIGS. 29 to 32, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in FIGS. 33 to 35, differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the first sealing element 134 and / or the second sealing element 152 form part of cover element 110.
  • a first elevation in particular an elevation closed in an annular shape, preferably extends away from a base body of the cover element 110 along a direction pointing from the interior space 108 to the first cell terminal 118.
  • the elevation preferably forms the first sealing element 134 and radially surrounds the first potting element 128 with respect to a central axis 142 of the first contact element 120.
  • a second elevation in particular closed to an annular shape, extends away from a base body of the cover element 110 along a direction pointing from the interior space 108 to the second cell terminal 122.
  • first sealing element 134 and / or the second sealing element 152 has at least one interruption (not shown).
  • the elevation forms the second sealing element 152 and surrounds the second casting element 150 radially with respect to a central axis 154 of the second contact element 124. It can be provided that the first sealing element 134 and / or the second sealing element 152 are and / or are embossed into the cover element 110.
  • first sealing element 134 and / or the second sealing element 152 are designed in the form of embossings.
  • the second sealing element 152 is designed partly in the form of a sealing bead made of the fourth polymer material and partly in the form of an embossing and / or bead (not shown).
  • a bead-sealing bead hybrid sealing element can thus be formed and / or become.
  • the fourth polymer material is preferably electrically insulating.
  • An electrically conductive contact surface only exists in areas of the bead and the electrically conductive contact surface between the housing 104 and the second cell terminal 122 is minimized overall.
  • a current can be limited more strongly in the event of a fault.
  • first sealing element 134 can also include or be formed from one or more beads in some areas and one or more sealing beads in some areas.
  • the first sealing element 134 is formed from the same material as the cover element 110.
  • the first sealing element 134 is formed in one piece with the base body of the cover element 110.
  • the second sealing element 152 is formed from the same material as the cover element 110.
  • the second Sealing element 152 is formed in one piece with the base body of cover element 110.
  • first sealing element 134 and / or the second sealing element 152 forms a recess and / or indentation on an inner side 132 of the cover element 110 facing the interior space 108 of the housing 104 in particular, is designed to be complementary to the elevation forming the respective sealing element 134, 152.
  • the insulating element 136 preferably has positioning projections 138 which are designed complementary thereto.
  • a first positioning projection 138 is arranged in a closed ring shape around the first opening 127a, for example by means of a bead.
  • a second positioning projection 138 is preferably closed in an annular shape around the second opening 127b of the insulating element, for example in by a bead.
  • the first positioning projection 138 and / or the second positioning projection 138 have, for example, an at least approximately rectangular cross section.
  • the cross section is preferably taken parallel to a main extension plane of the insulating element 136.
  • Further positioning projections 138 and complementary positioning recesses 140 can preferably be dispensed with.
  • the covering element 110 can be positioned relative to the insulating element 136 via the annularly closed positioning projections 138 of the insulating element 136 and the complementary positioning recesses 140 of the covering element 110.
  • the cover element 110 and the insulating element 136 are fixed relative to one another, for example by means of a holding element. In this way, the first resin material and / or the second resin material can be prevented from running before complete curing.
  • a hold-down device is preferably used as the holding element.
  • FIGS. 33 to 35 corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 36, differs in terms of structure and function essentially from the embodiment shown in FIGS. 33 to 35 in that the first contact element 120 and / or the second contact element 124 are and / or will be inserted into the insulating element 136.
  • the first contact element 120 forms an insert.
  • the second contact element 124 forms an insert.
  • a form fit is formed between the insulating element 136 and the first contact element 120, in particular in a direction arranged parallel to the central axis 142 of the first contact element 120.
  • a form fit is preferably formed between the insulating element 136 and the second contact element 124, in particular in a direction arranged parallel to the central axis 154 of the second contact element 124.
  • a seal between the first contact element 124 and the insulating element 136 and / or the second contact element 124 and the insulating element 136 is formed in particular by the weight of the respective components.
  • the insulating element 136 is in particular molded onto the first contact element 120 and / or the second contact element 124.
  • FIG. 36 essentially corresponds in terms of structure and function to the embodiment shown in FIGS. 33 to 35, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 37, differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the first resin material and / or the second resin material after connecting the first cell terminal 118 to the first connecting element 120 and / or after connecting the second cell terminal 122 to the second contact element 124.
  • the insulating element 136 has a first filler opening 164 through which the first resin material is poured into the first connection area 130 in a flowable state.
  • the insulating element 136 has a second filling opening 164 in the region of the second connecting region 156 which the second resin material in the flowable state in the second connec tion area 156 is filled.
  • first sealing element 134 and / or the second sealing element 152 do not form a closed ring shape, but in particular have one or more interruptions 166 (cf. FIG. 61).
  • the one or more interruptions 166 form vent openings, for example.
  • the cover element 110 is preferably positioned on the insulating element 136 by means of the positioning projections 138 and positioning recesses 140.
  • the first opening 126a of the cover element 110 and the first opening 127a of the insulating element 136 are preferably arranged in such a way that they are congruent.
  • the second opening 126b of the cover element 110 and the second opening 127b of the insulating element 136 are preferably arranged in such a way that they are congruent.
  • the first contact element 120 is then preferably passed through the first openings 126a, 127a and / or the second contact element 124 is passed through the second openings 126b, 127b.
  • the first cell terminal 118 is positioned on the first contact element 120.
  • the second cell terminal 122 is positioned on the second contact element 124.
  • the cell terminals 118, 122 and respective contact elements 120, 124 are force-locked by means of one or more holding elements, for example hold-down clamps, held together while they are materially connected, for example by means of laser welding.
  • holding elements for example hold-down clamps
  • the one or more holding elements can then be removed.
  • connection areas 130, 156 are filled, for example in a hardening line.
  • the first resin material is then preferably filled into the first connecting region 130, for example through the first filling opening 164.
  • the second resin material is filled into the second connecting region 156, for example through the second filling opening 164.
  • the first resin material and / or the second resin material is converted into the first polymer material or the second polymer material, preferably by drying.
  • FIG. 37 essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 38, differs in terms of structure and function essentially from the embodiment shown in FIG. 37 in that the second sealing element 152 as in connection with the embodiment shown in FIGS. 33 to 35 is designed as part of the cover element 110.
  • the cover element 110 rests in the region of the second connection region 156 on a positioning projection 138 of the insulating element 136, for example formed by a bead.
  • the second cell terminal 122 is in direct material contact with the second sealing element 152 embodied as an elevation of the cover element 110. This can minimize corrosion.
  • an electrically insulating coating in particular an oxide layer, for example an aluminum oxide layer, is formed between the second cell terminal 122 and the second sealing element 152.
  • An electrical resistance can thus be formed between the housing 104 and the second cell terminal 122. This limits in particular the flow of current and increases the safety of the electrochemical cell 100.
  • contact surfaces of the second cell terminal 122 and / or of the second sealing element 152 are subjected to a surface treatment.
  • the contact surfaces are anodized and / or a surface roughness is increased, for example by means of sandblasting.
  • the electrical resistance of the contact surfaces can be increased and, on the other hand, direct material contact between the contact surfaces can be interrupted at least at certain points.
  • FIG. 38 essentially corresponds in terms of structure and function to the embodiment shown in FIG. 37, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 39, differs in terms of structure and function essentially from the embodiment shown in FIG. 37 in that the second contact element 124 is electrically conductive and / or materially connected to the cover element 108 is connected.
  • the securing element 158 is preferably arranged on a side of the cover element 108 facing the interior space 108 of the housing 104.
  • the housing 104 is brought to the potential of the second cell terminal 122.
  • the first resin material and / or the second resin material are preferably filled in when the cell terminals 118, 122 are welded to the contact elements 120, 124.
  • an electrochemical cell 100 shown in FIG. 39 essentially corresponds in terms of structure and function to the embodiment shown in FIG. 37, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 shown in FIGS. 40 to 44 differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the first contact element 120 and / or the second contact element 124 are laterally connected to the first connecting conductor 114 and the second connecting conductor 116.
  • connection of the connecting conductors 114, 116 to the electrochemical element 106 is also formed on the side.
  • the embodiment shown in FIGS. 40 to 44 essentially corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the embodiment shown in FIGS. 40 to 44 in that the electrochemical cell 100 does not include an insulating element 136.
  • first potting element 128 and / or the second potting element 150 do not undercut the cover element 110 on a side facing the interior 108 of the housing 104.
  • the first connection area 130 is filled with the first resin material and / or the second connection area 156 is filled with the second resin material preferably from a side facing the interior space 108 in the assembled state.
  • FIG. 45 essentially corresponds in terms of structure and function to the embodiment shown in FIGS. 40 to 44, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell 100 which is not shown as a whole in the drawing in FIG. 46, differs in terms of structure and function essentially from the embodiment shown in FIGS. 40 to 44 in that the insulating element 136 has a first filling opening 164 in the area of the first connection area 130 and / or a second filling opening 164 in the area of the second connection area 156.
  • the filling openings 164 are preferably used to fill the first resin material into the first connection region 130 and / or to fill the second resin material into the second connection region 156.
  • the first contact element 120 has a cross-sectional area which is reduced by approx. 10% or more, for example by approx. 30% or more, in a region facing the interior 108 below the cover element 110, compared to the remaining first contact element 120
  • the second contact element 124 has a cross-sectional area reduced by approx. 10% or more, for example by approx. 30% or more, in a region facing the interior 108 below the cover element 110, compared to the remaining second Contact element 124.
  • FIG. 46 essentially corresponds in terms of structure and function to the embodiment shown in FIGS. 40 to 44, so that reference is made to the description thereof.
  • a further embodiment of an electrochemical cell not shown as a whole in FIGS. 47 to 51 differs in terms of structure and function essentially from the embodiment shown in FIG. 46 in that the first contact element 120 and / or the second contact element 124 essentially have a stepped cross-section.
  • the cross section is preferably taken parallel to a main side of the electrochemical cell 100.
  • the first contact element 120 is bent and / or is bent in such a way that it has an area which is arranged at least approximately parallel to a main plane of extent of the cover element 110.
  • the first contact element 120 has a further region facing away from the first cell terminal 118, the main extension plane of which is arranged at least approximately perpendicular to the main extension plane of the cover element 110.
  • the second contact element 124 is and / or is preferably bent in such a way that it has an area which is arranged at least approximately parallel to a main plane of extent of the cover element 110.
  • the second contact element 124 has a further area facing away from the second cell terminal 122, the main extension plane of which is arranged at least approximately perpendicular to the main extension plane of the cover element 110.
  • first contact element 120 and the insulating element 136 form a force fit and / or form fit.
  • the second contact element 124 and the insulating element 136 form a force fit and / or form fit.
  • a holding element in the production of the electrochemical cell 100 is preferably not necessary.
  • a cross-sectional area of the first contact element 120 and / or a cross-sectional area of the second contact element 124 is preferably constant over their entire extent.
  • FIGS. 47 to 51 essentially corresponds to the embodiment shown in FIG. 46 in terms of structure and function, so that reference is made to the description thereof.
  • FIGS. 52 and 53 show an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the first embodiment shown in FIGS. 1 to 10 in that the insulating element 136 has a plurality of flow guiding elements 168.
  • a flow guide element 168 is arranged in a recess 165 of the insulating element 136 arranged in the region of the first connecting region 130.
  • a further flow guide element 168 is preferably arranged in a recess 165 of the insulating element 136 arranged in the region of the second connecting region 156.
  • the flow guide elements 168 have an at least approximately V-shaped cross section.
  • the cross section is preferably taken parallel to a main extension plane of the insulating element 136.
  • the flow guide elements 168 are preferably used for a controlled distribution of the first resin material and / or the second resin material.
  • the flow guide elements 168 are preferably each arranged between the respective opening 127a, 127b and an adjacent side of the electrochemical cell 100.
  • Tips of the V-shapes in particular each point outwards from the respective opening 127a, 127b. It can be advantageous if the depressions 165 of the insulating element 136 serve as receptacles and / or pockets for the first resin material or the second resin material.
  • Positioning projections 138 are preferably arranged on mutually facing sides of the depressions 165.
  • a filling opening 164 for filling the first resin material or the second resin material is preferably arranged.
  • the insulating element 136 shown in FIGS. 52 and 53 can alternatively be used in any of the described embodiments of an electrochemical cell 100.
  • FIGS. 52 and 53 corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • FIG. 54 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the embodiment shown in FIGS. 52 and 53 in that two flow guide elements 168 are arranged in each recess of the insulating element 136, which are arranged at an angle to one another and / or at a distance from one another are.
  • the two flow guide elements 168 preferably form an obtuse angle with one another.
  • the insulating element 136 according to FIG. 54 can be used in any of the described embodiments of an electrochemical cell 100.
  • FIG. 54 essentially corresponds in terms of structure and function to the embodiment shown in FIGS. 52 and 53, so that reference is made to the description thereof.
  • 55 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the embodiment shown in FIGS. 52 and 53 in that no separate flow guide elements 168 are provided, but rather the positioning projections 138 form flow guide elements 168.
  • two flow guide elements are preferably arranged on both sides of the first opening 127a and the second opening 127b of the insulating element 136.
  • the insulating element 136 according to FIG. 55 can be used in any of the described embodiments of an electrochemical cell 100.
  • FIG. 55 essentially corresponds with regard to structure and function to the embodiment shown in FIGS. 52 and 53, so that reference is made to the description thereof.
  • FIG. 56 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the embodiment shown in FIG. 55 in that the insulating element 136 has several, presently two, filling channels 170, each of which has a filling opening 164 of the insulating element 136 with a, for example, pocket-shaped, recess 165 of the insulating element 136 connect.
  • a filling opening 164 is arranged between the first opening 127a and a central region of the insulating element 136 arranged centrally between the openings 127a, 127b.
  • a further filling opening 164 is preferably arranged between the second opening 127b and the central region of the insulating element 136 arranged centrally between the openings 127a, 127b.
  • filling channels 170 are formed out as open channels.
  • the filling channels 170 are designed as elongated regions in which the insulating element 136 has a thickness that is locally reduced, for example by approximately 20% or more, compared to an average thickness of the remaining insulating element 136.
  • each filling channel 170 has a filling channel section 170a connected to a filling opening 164, the main direction of extent of which is arranged at least approximately parallel to a main side of the electrochemical cell 100.
  • Further filling channel sections 170b, 170c are preferably connected directly to the filling channel section 170a.
  • the further filling channel sections 170b, 170c form, for example, at least approximately a V-shape and / or connect the filling channel section 170a to a, for example pocket-like, recess 165 of the insulating element 136.
  • the first resin material When the first resin material is filled into the filler opening 164 arranged adjacent to the first opening 127a, the first resin material preferably flows through the filler channel section 170a and through the further filler channel sections 170b, 170c. The first resin material is then caught in particular in the first recess 165 of the insulating element 136 and / or collects in the first recess 165 of the insulating element 136.
  • the second resin material When the second resin material is filled into the filling opening 164 arranged adjacent to the second opening 127b, the second resin material preferably flows through the filling channel section 170a and through the further filling channel sections 170b, 170c. The second resin material is then caught in particular in the second recess 165 of the insulating element 136 and / or collects in the second recess 165 of the insulating element 136.
  • the insulating element 136 according to FIG. 56 can be used in any of the described embodiments of an electrochemical cell 100.
  • Positioning projections 138 are not shown in the drawing, but can be provided.
  • FIG. 56 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the further embodiment differs in terms of structure and function essentially from the embodiment shown in FIG. 55 in that two filling openings 164 are arranged in each of the two depressions 165 of the insulating element 136.
  • the two filling openings 164 are preferably located on a diagonal which runs through the respective recess 165.
  • the two filling openings 164 are arranged in corner regions of the respective depression 165 lying on a diagonal.
  • Positioning projections 138 can preferably be dispensed with.
  • the insulating element 136 according to FIG. 57 can be used in any of the described embodiments of an electrochemical cell 100.
  • an electrochemical cell 100 shown in FIG. 57 essentially corresponds to the embodiment shown in FIG. 55 in terms of structure and function, so that reference is made to the description thereof.
  • FIG. 58 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the embodiment shown in FIG. 55 in that the insulating element 136 comprises two flow guide elements 168 which at least approximately spiral around the first opening 127a and / or the second Opening 127b is arranged around.
  • the flow guide elements 168 preferably serve to uniformly distribute the first resin material in the first connection region 130 and / or the second resin material in the second connection region 156.
  • the flow guide elements 168 each have a varying height.
  • the flow guide elements 168 extend partially or completely from a recess 165 of the insulating element 136 up to an extension of the insulating element 136 in regions of the insulating element 136 adjoining the recess 165.
  • the flow guide elements 168 close perpendicular to a main plane of extent of the insulating element 136 at least approximately flush with the remaining insulating element 136 and / or do not protrude beyond a base body of the insulating element 136.
  • a filling opening 164 is arranged on an edge of the insulating element 136 facing a secondary side of the electrochemical cell 100 within the respective recess 165.
  • Positioning projections 138 can preferably be dispensed with.
  • the insulating element 136 according to FIG. 58 can be used in any of the described embodiments of an electrochemical cell 100.
  • an electrochemical cell 100 shown in FIG. 58 essentially corresponds in terms of structure and function to the embodiment shown in FIG. 55, so that reference is made to the description thereof.
  • FIG. 59 shows an insulating element 136 of a further embodiment of an electrochemical cell 100, which is not shown as a whole in the drawing.
  • the further embodiment of an electrochemical cell 100 differs in terms of structure and function essentially from the embodiment shown in FIG. 58 in that the flow guide elements 168 form a closed ring shape.
  • a first flow guiding element 168 preferably closed in an annular shape, surrounds the first opening 127a of the insulating element 136. It is preferably arranged at a distance from the first opening 127a.
  • a second flow guiding element 168 surrounds the second opening 127b of the insulating element 136 in a closed ring shape.
  • the second flow guide element 168 is in particular arranged at a distance from the second opening 127b of the insulating element 136.
  • the flow guide elements 168 preferably have an at least approximately rectangular cross section.
  • the cross section is preferably taken parallel to a main extension plane of the insulating element 136.
  • the flow guide elements 168 have different heights from one another, so that in particular flow path-dependent flow guide elements are formed.
  • the insulating element 136 according to FIG. 59 can be used in any of the described embodiments of an electrochemical cell 100.
  • FIG. 59 essentially corresponds in terms of structure and function to the embodiment shown in FIG. 58, so that reference is made to the description thereof.
  • 60 to 72 show by way of example which shapes the first sealing element 134 and / or the second sealing element 152 can have.
  • the sealing elements 134, 152 according to FIGS. 60 to 72 can be used in all of the described embodiments of an electrochemical cell 100.
  • sealing elements 134, 152 made of a polymer material and to sealing elements 134, 152, which form part of the cover element 110 and are in particular made of a metallic material, for example aluminum.
  • the sealing element 134, 152 has an at least approximately rectangular cross section.
  • the cross section is preferably taken parallel to a main plane of extent of the cover element 110.
  • the sealing element 134, 152 in particular forms a closed ring shape (FIG. 60).
  • the second sealing element 152 comprises two metallic beads arranged parallel to one another.
  • the beads are, for example, arranged at least approximately parallel to a main side of the electrochemical cell 100 and / or to a secondary side of the electrochemical cell 100 (not shown).
  • the sealing element 134, 152 has one or more interruptions 166 (FIG. 61).
  • the sealing element 134, 152 in a cross section approximately 350 ° to approximately 355 ° of a circle, the center of which forms the central axis 142 of the first contact element 120 or central axis 154 of the second contact element 124, of the sealing element 134, 152 to give.
  • the cross section is in an installation situation of the sealing element 134, 152 preferably taken parallel to a main plane of extent of the cover element 110.
  • the sealing element 134, 152 has an at least approximately U-shaped cross section, with free ends of the U-shape being connected to one another in particular by a connecting section.
  • the connecting section is preferably arranged at least approximately parallel to a main direction of extent of the respective opening 126a, 126b (cf. FIG. 62).
  • the sealing element 134, 152 for example, on a side facing away from the respective opening 126a, 126b has a curvature which points away from an interior space that is opposite to the sealing element 134, 152 (cf. FIG. 63). .
  • the sealing element 134, 152 has a plurality of curvatures directly adjoining one another, which for example form one side of the sealing element 134, 152.
  • the sealing element 134, 152 has two bulges pointing away from an interior space surrounded by the sealing element 134, 152.
  • a separating section between the two arches extends into an interior space surrounded by the sealing element 134, 152.
  • the bulges are preferably arranged on a side of the sealing element 134, 152 facing away from the respective opening 126a, 126b (cf. FIG. 64).
  • the sealing element 134, 152 has an at least approximately rectangular cross section and two projections in each case, which have a main direction of extent which is arranged at least approximately parallel to a main direction of extent of the respective opening 126a, 126b (cf. FIG. 65).
  • the protrusions extend preferably in one of a base body of the sealing element 134,
  • the sealing element 134, 152 each have two tongue-shaped projections, which are arranged inclined in particular inwards and / or towards the respective opening 126a, 126b (cf. FIG. 66).
  • the sealing element 134, 152 has three projections which alternately protrude from opposite sides along a direction perpendicular to a main direction of extent of the respective opening 126a, 126b into an interior space surrounding by the sealing element 134, 152.
  • a main direction of extent of the projections is preferably arranged at least approximately parallel to a main direction of extent of the respective opening 126a, 126b (FIG. 67).
  • the projections point obliquely away from the respective opening 126a, 126b (FIG. 68).
  • the sealing element 134, 152 has several protrusions which are arranged at a distance from a base body of the respective sealing element 134, 152 and / or are arranged in an interior space surrounding the base body of the respective sealing element 134, 152.
  • the main directions of extent of two projections in each case preferably form an obtuse angle with one another (cf. FIG. 69).
  • a single projection is arranged in an interior space surrounded by a base body of the sealing element 134, 152, which has an at least approximately circular cross section (cf. FIG. 70) or an at least approximately elliptical and / or oval cross-section (cf. FIG. 71).
  • this preferably has a main direction of extent which is arranged at least approximately perpendicular to a main direction of extent of the respective opening 126a, 126b.
  • the second sealing element 152 has a projection with an approximately round cross section, which comprises or is formed from a metallic material (FIG. 72).
  • the cell terminals 118, 122 can have cuboidal passage openings 119 (cf. FIGS. 73 and 74) or passage openings 119 with an oval cross section (cf. 75 and 76).
  • Main directions of extent of the through openings 119 can be arranged parallel to a main side of the electrochemical cell 100 (cf. FIGS. 74 and 76) or perpendicular (cf. FIGS. 73 and 75) to the main side of the electrochemical cell 100.
  • FIGS. 77 to 83 of an electrochemical cell 100 not shown as a whole differs in terms of structure and function essentially from the first embodiment of an electrochemical cell 100 shown in FIGS. 1 to 10 in that the cover element 110 has a second recessed area 180, for example on a cathode side (cf. FIG. 78).
  • the cathode side is indicated by a plus sign in the drawings.
  • One side of the anode is indicated by a minus sign in the drawings.
  • the cathode side and the anode side are interchanged in the embodiment shown in FIGS. 77 to 83 in comparison to the illustrations of the other embodiments.
  • the second recessed area 180 is, for example, an embossed area and / or formed by embossing.
  • the second recessed area 180 preferably surrounds and / or delimits the second potting element 156.
  • the second recessed area 180 serves as a receptacle for the second resin material.
  • the second recessed area 180 is formed in the shape of a basin and / or forms a potting basin for the second resin material in a flowable state.
  • the second resin material preferably flows into the second recessed region 180.
  • the second recessed area 180 surrounds the second opening 126b in the cover element 110. It can be provided here that a larger sub-area of the second recessed area 180 is arranged on a side of the second opening 126b facing the central section of the cover element 110, while a second, smaller sub-area of the second recessed area 180 is arranged on a narrow side of the electrochemical cell 100 facing side is arranged.
  • the second recessed area 180 is surrounded by a cell terminal support area 182, in particular in a ring shape.
  • the cell terminal support area 182 preferably serves as a support surface for the second cell terminal 122 and / or is in direct contact with the second cell terminal 122 in an assembled state of the electrochemical cell 100.
  • the second recessed area 180 preferably has on a side of the recessed area facing the central area of the cover element 110 180 has a bulge 185 which is used, for example, as a degassing opening during a filling process for the second resin material.
  • the cover element 110 for example on the anode side, has a first recessed area (not shown in the drawing).
  • the first recessed area may be formed like the second recessed area 180. Reference is made to the corresponding explanations regarding the second recessed area 180 with regard to the first recessed area.
  • the formation of the second recessed area 180 and / or a first recessed area means that sealing elements 134, 152 are preferably dispensable.
  • the insulating element 136 preferably has several, in the present case regularly arranged, passage openings 184.
  • the passage openings 184 are, for example, at least approximately approximately oval or at least approximately rectangular and / or are arranged essentially over the entire area of the insulating element 136.
  • At least approximately rectangular passage openings 184 are arranged according to a first arrangement pattern over the central portion of the insulating element 136.
  • passage openings 184 are arranged towards the narrow sides of the insulating element 136 according to a second arrangement pattern.
  • the insulating element 136 is preferably formed in several parts, for example in two parts. In this regard, reference is made to the statements relating to the embodiments shown in FIGS. 11 and 12.
  • the first contact element 120 preferably has a first resin material filling opening 188.
  • the first resin material filling opening 188 preferably serves as an opening for filling a volume that forms the first potting element 130 in the cured state of the first resin material.
  • the first resin material is filled in a flowable state through the first resin material filling port 188.
  • the second contact element 124 has a second resin material filling opening 186, which serves in particular as an opening for filling a volume that forms the second potting element 156 in the cured state of the second resin material.
  • the second resin material is filled in a flowable state through the second resin material filling port 186, for example, the second recessed portion 180.
  • filling openings in the insulating element 136 are preferably dispensable.
  • a volume forming the first connecting element 130 and / or a volume forming the second connecting element 156 is filled through the contact elements 120, 124.
  • the second contact element 124 and the second connecting conductor 116 are preferably separate components which are connected to one another by a transition part 190, for example.
  • the second contact element 124 and the second connecting conductor 116 are in a plane perpendicular to the main extension plane of the Covering element 110 taken cross-section are arranged at least approximately L-shaped and / or angled to one another.
  • the first contact element 120 and the first connecting conductor 114 are preferably formed in one piece.
  • the first contact element 120 and the first connecting conductor 114 preferably form at least approximately an L-shape and / or are arranged at an angle to one another in a cross section taken perpendicular to the main extension plane of the cover element 110.
  • FIGS. 77 to 83 essentially corresponds with regard to structure and function to the first embodiment shown in FIGS. 1 to 10, so that reference is made to the description thereof.
  • a further embodiment, shown in FIGS. 84 to 87, of an electrochemical cell 100 not shown as a whole differs in terms of structure and function essentially in that individual elements of the electrochemical cell 100 include a reduced average thickness compared to the previous embodiments are formed.
  • an average thickness of the first connecting conductor 114 is approximately 1/10 or less of an average width of the first connecting conductor 114 taken perpendicular to the thickness.
  • the average thickness of the first connection conductor 114 is preferably approximately 0.8 mm or less, for example approximately 0.7 mm or less.
  • the average thickness of the first connecting conductor 114 is preferably defined and / or corresponds to perpendicular to its main extension plane in particular an average material thickness of a material, for example a sheet metal material, from which the first connecting conductor 114 is made.
  • an average thickness of the second connecting conductor 116 is approximately 1/10 or less of an average width of the second connecting conductor 116 taken perpendicular to the thickness.
  • the average thickness of the second connecting conductor 116 is preferably approximately 0.8 mm or less, for example approximately 0.7 mm or less.
  • the average thickness of the second connecting conductor 116 is preferably defined perpendicular to its main extension plane and / or corresponds to an average material thickness of a material, for example a sheet metal material, from which the second connecting conductor 116 is herge.
  • the insulating element 136 preferably has an average thickness which is less than the average thicknesses of the insulating elements 136 of the previously described embodiments.
  • an average thickness of the insulating element 136 is approximately 1/10 or less, for example approximately 1/15 or less, of an average width of the insulating element 136 taken perpendicular to the thickness.
  • the average thickness of the insulating element 136 is approximately 1.8 mm or less, for example approximately 1.7 mm or less.
  • an average width Bl of the first contact member 120 in a first assembly portion 192 to the first cell terminal 118 about 1/2 or less, particularly about 2/5 or less , an average width of the first cell terminal 118.
  • the average width B1 of the first contact element 120 and the average width of the first cell terminal 118 are preferably defined at least approximately parallel to one another and / or at least approximately parallel to a narrow side of the electrochemical cell 100 is arranged.
  • the first joining area 192 is preferably an area in which the first contact element 120 and the first cell terminal 118 are connected to one another.
  • the first contact element 120 in the first joining region 192 is preferably guided through the passage opening 119 of the first cell terminal 118 and / or fills it.
  • An average width B2 is preferably the second contact element 124 in a second assembly portion 194 to the second cell terminal 122 about 1/2 or less, particularly about 2/5 or less, a by-sectional width of the second cell terminal 122nd
  • the average width B2 of the second contact element 124 and the average width of the second cell terminal 122 are preferably defined at least approximately parallel to one another and / or arranged at least approximately parallel to a narrow side of the electrochemical cell 100.
  • the second joining area 194 is preferably an area in which the second contact element 124 and the second cell terminal 122 are connected to one another.
  • the second contact element 124 is preferably in the second
  • the joining region 194 is guided through the passage opening 119 of the second cell terminal 122 and / or fills it.
  • the average width B1 of the first contact element 120 and / or the average width B2 of the second contact element 124 in the respective joining area 192, 194 are approximately 10.5 mm or less, for example approximately 9.5 mm or less.
  • the average width B1 of the first contact element 120 in the first joining region 192 preferably corresponds essentially to an average width of the passage opening 119 of the first cell terminal 118.
  • the average width B2 of the second contact element 124 in the second joining region 194 preferably essentially corresponds to an average width of the passage opening 119 of the second cell terminal 122.
  • the first contact element 120 in the first joining area 192 has an average thickness Dl which is approximately 2/10 or less, for example approximately 1/10 or less, of the average width B1 of the first contact element 120 in the first joining area 192 is.
  • the second contact element 124 in the second joining area 194 has an average thickness D2 which is approximately 2/10 or less, for example approximately 1/10 or less, of the average width B2 of the second contact element 124 in the second joining area 194 is.
  • the average thickness Dl of the first contact element 120 is in particular defined at least approximately perpendicular to the average width B1 of the first contact element 120.
  • the average thickness D2 of the second contact element 124 is preferably defined at least approximately perpendicular to the average width B2 of the second contact element 124.
  • the average thickness Dl of the first contact element 120 in the first joining area 192 and / or the average thickness D2 of the second contact element 124 in the second joining area 194 is preferably approx.
  • the average thickness Dl of the first contact element 120 in the first joining region 192 is preferably essentially identical to an average length of the passage opening 119 of the first cell terminal 118 in the first joining region 192.
  • the average thickness D2 of the second contact element 124 in the second joining area 194 is essentially identical to an average length of the passage opening 119 of the second cell terminal 122 in the second joining area 194.
  • an average thickness of the cover element 110 in a cross section taken perpendicular to its main extension plane is approximately 1/10 or less, for example approximately 1/20 or less, of an average width of the cover element 110 perpendicular to its thickness.
  • the average thickness of the cover element 110 is preferably approximately 1.9 mm or less, for example approximately 1.8 mm or less.
  • the first connecting conductor 114 and the first contact element 120 are preferably formed in one piece and / or do not have any thickenings caused by the material transition.
  • the second connection conductor 116 and the second Contact element 124 designed in one piece and / or have no material-related transition-related thickenings.
  • first connecting conductor 114 and the first contact element 120 are at least approximately stepped in a cross section taken perpendicular to the main extension plane of the cover element 110 and / or do not have a T-shape (as a whole).
  • the first contact element 120 is preferably at least approximately rectangular in a cross section taken parallel to the main plane of extent of the cover element 110.
  • the second connecting conductor 116 and the second contact element 124 are preferably at least approximately step-shaped in a cross section taken perpendicular to the main plane of extent of the covering element 110 and / or do not have a T-shape (as a whole).
  • the second contact element 124 is at least approximately rectangular in a cross section taken parallel to the main plane of extent of the cover element 110.
  • a filling of the first resin material and / or the second resin material is preferably implemented through a first filling opening 196 or a second filling opening 198.
  • the first filling opening 196 and / or the second filling opening 198 are in the present case designed as openings in the insulating element 136.
  • a filling of the first resin material and / or the second resin material through the first contact element 120 and the second contact element 124 is preferably unnecessary. Otherwise, the further embodiment of an electrochemical cell shown in FIGS. 84 to 87 essentially corresponds in terms of structure and function to the embodiment shown in FIGS. 77 to 83, so that reference is made to the description thereof.
  • the potting elements 128, 150 make further tools for producing a seal between the cover element and the contact elements 120, 124 unnecessary. Curing can take place in the component.
  • Component complexity is preferably reduced.
  • the potting elements 128, 150 preferably act as gap fillers.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Le but de l'invention est de fournir une cellule électrochimique qui peut être fabriquée le plus simplement possible et qui présente une longue durée de vie. A cet effet, la cellule électrochimique comprend un premier élément de contact qui relie une première borne de cellule à un premier conducteur de connexion et qui est fixé à un élément de recouvrement de la cellule électrochimique au moyen d'un premier élément d'enrobage dans une première région de connexion, ledit premier élément d'enrobage étant constitué d'un premier matériau polymère qui comprend ou est constitué d'un premier matériau de résine, et/ou la cellule électrochimique comprend un second élément de contact qui relie une seconde borne de cellule à un second conducteur de connexion et qui est fixé à l'élément de recouvrement au moyen d'un second élément d'enrobage dans une seconde région de connexion, ledit second élément d'enrobage étant constitué d'un second matériau polymère qui comprend ou est constitué d'un second matériau de résine.
EP21700829.1A 2020-01-07 2021-01-05 Cellule électrochimique, système électrochimique et procédé de fabrication d'une cellule électrochimique Pending EP4088337A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020200063.8A DE102020200063A1 (de) 2020-01-07 2020-01-07 Elektrochemische Zelle, elektrochemisches System und Verfahren zur Herstellung einer elektrochemischen Zelle
PCT/EP2021/050050 WO2021140083A1 (fr) 2020-01-07 2021-01-05 Cellule électrochimique, système électrochimique et procédé de fabrication d'une cellule électrochimique

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EP4088337A1 true EP4088337A1 (fr) 2022-11-16

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US (1) US20220352584A1 (fr)
EP (1) EP4088337A1 (fr)
CN (1) CN114930592A (fr)
DE (1) DE102020200063A1 (fr)
WO (1) WO2021140083A1 (fr)

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DE102020211571A1 (de) 2020-09-15 2022-03-17 Elringklinger Ag Durchführungssystem, Verfahren zur Herstellung eines Durchführungssystems, elektrochemische Zelle und elektrochemisches System
DE102020216364A1 (de) 2020-12-21 2022-06-23 Elringklinger Ag Bauteil, elektrochemische Zelle und Verfahren zur Herstellung eines Bauteils
DE102021203995A1 (de) 2021-04-21 2022-10-27 Elringklinger Ag Elektrochemische Zelle und Verfahren zur Herstellung einer elektrochemischen Zelle
DE102021207011A1 (de) 2021-07-05 2023-01-05 Elringklinger Ag Elektrochemische Zelle, elektrochemisches System und Verfahren zur Herstellung einer elektrochemischen Zelle
EP4369478A1 (fr) * 2022-11-09 2024-05-15 Hilti Aktiengesellschaft Enrobage à deux composants pour accumulateur

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040062943A1 (en) 2001-12-28 2004-04-01 Masanori Naritomi Composite material of aluminum alloy and resin and production method therefor
DE10326906B4 (de) * 2003-06-14 2008-09-11 Varta Automotive Systems Gmbh Akkumulator und Verfahren zur Herstellung einer dichten Kontaktklemmendurchführung
KR101265214B1 (ko) * 2011-06-22 2013-05-27 로베르트 보쉬 게엠베하 이차 전지 및 그 제조방법
US9236596B2 (en) 2011-06-30 2016-01-12 Samsung Sdi Co., Ltd. Rechargeable battery
DE102012213871A1 (de) 2012-08-06 2014-02-06 Robert Bosch Gmbh Batteriezelle und Verfahren zu ihrer Herstellung sowie Batterie und Kraftfahrzeug mit einer solchen
DE102012217451A1 (de) * 2012-09-26 2014-04-17 Robert Bosch Gmbh Batteriezelle mit in Gehäusedeckplatte integriertem Knackfederbereich
KR101553583B1 (ko) 2014-01-28 2015-09-16 삼성에스디아이 주식회사 이차전지
DE102014221626A1 (de) * 2014-10-24 2016-04-28 Robert Bosch Gmbh Batteriezelle
JPWO2017159760A1 (ja) 2016-03-17 2019-01-31 株式会社Ｇｓユアサ 蓄電素子及び蓄電素子の製造方法
JP6780419B2 (ja) 2016-09-30 2020-11-04 株式会社Ｇｓユアサ 蓄電素子
US20180183018A1 (en) * 2016-12-26 2018-06-28 Gs Yuasa International Ltd. Energy storage device
DE102017200390A1 (de) 2017-01-11 2018-07-12 Elringklinger Ag Elektrochemische Zelle, elektrochemische Einrichtung, Verfahren zur Herstellung einer elektrochemischen Zelle
US10763466B2 (en) * 2018-03-09 2020-09-01 Contemporary Amperex Technology Co., Limited Top cap assembly of a secondary battery, and secondary battery
DE102018209270B4 (de) 2018-06-11 2022-09-22 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Herstellen einer Deckelbaugruppe für ein Zellgehäuse einer prismatischen Batteriezelle einer Hochvoltbatterie eines Kraftfahrzeugs, Batteriezelle sowie Hochvoltbatterie

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US20220352584A1 (en) 2022-11-03
WO2021140083A1 (fr) 2021-07-15
CN114930592A (zh) 2022-08-19
DE102020200063A1 (de) 2021-07-08

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